• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    FIREARMS, IRON GROUP, DEVICE, AND METHOD A firearm that may have a bolt with a plurality of locking ears that is configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4 is described. A piston can be formed in the bolt and can have a plurality of rings that are configured to cooperate with the piston to relieve gas leakage beyond the piston. Each of the rings can have a key formed in it and a gap formed in it, such that the ring gap is configured to receive at least a portion of the key from another ring. The bolt holder may have a double cut cam.
    公开号:BR112013017956A2
    申请号:R112013017956-2
    申请日:2012-01-13
    公开日:2020-07-28
    发明作者:Leroy James Sullivan；James McGarry；Robert Lloyd Waterfield；Paul N. Latulippe, Jr
    申请人:ArmWest, LLC；
    IPC主号:
    专利说明:

    "FIREARMS, IRON GROUP FOR A FIREARMS, AND METHOD FOR ASSEMBLING A FIREARMS"
    PRIORITY CLAIM This application claims benefit from US provisional patent application No. 61 / 433,092, filed on January 14, 2011. This application claims benefit from US provisional patent application No. 61 / 433,083, filed on January 14 of 2011. This application claims the benefit of US provisional patent application No. 61 / 478,439, filed on April 22, 2011. This application claims the benefit of US provisional patent application No. 61 / 479,194, filed on April 26 of 2011. This application claims the benefit of US provisional patent application No. 61 / 498,426, filed on June 17, 2011. This application claims the benefit of US provisional patent application No. 61 / 528,062, filed on August 26 2011. This application claims the benefit of non-provisional US patent application No. 13 / 348,871, filed on January 12,
    2012. All of these patent applications identified are hereby incorporated by reference in their entirety.
    TECHNICAL FIELD OF THE INVENTION One or more embodiments of the invention generally concern firearms and, more particularly, for example, a firearm such as a member of the M16 / M4 family of firearms that has features that increase its reliability .
    BACKGROUND OF THE INVENTION The M16 service rifle and M4 carbine are well known. - While these firearms have been generally satisfactory, the M16 and M4, as well as other firearms, have a variety of reliability drawbacks. These reliability drawbacks can result in a firearm malfunction. These reliability drawbacks are becoming more evident as the use of larger capacity cameras increases. Such malfunctions can have serious consequences and are therefore highly undesirable. Some of the reliability drawbacks are discussed below.
    Gas-operated firearms use part of the gas from a cartridge that is triggered to extract the used capsule from the cartridge and place a new cartridge in the chamber. The gas travels from a hole in the pipe to a gas cylinder where the gas pushes a piston into the gas cylinder to operate a mechanism to extract the used capsule and place the new cartridge in the chamber. In some firearms, such as the M16 and MA, the gas cylinder is formed in the bolt holder and the piston is part of the bolt. In such firearms, gas is supplied from the pipe in the gas cylinder by a gas pipe.
    In other firearms, such as the HK416, a separate piston (not part of the bolt) is used. The piston is arranged in a gas cylinder that is not part of the bolt support. This separate piston applies force through a lever arm or operating rod and a ferrule support to operate the mechanism to extract the used capsule and to place the new cartridge in the chamber.
    Whether or not the piston is part of the bolt, it is desirable to prevent gas leakage between the piston and the cylinder. Modernly operated firearms typically use a plurality of piston rings that engage a piston groove in an attempt to provide a gas seal between the piston and the cylinder to reduce gas leakage. For example, the M16, MA4, and HK416 use three rings. Each of the rings is a split ring that has an interstice formed in it to facilitate the installation of the ring and allow the ring to apply an outward spring force that tends to seal the loose fit between the piston and the cylinder.
    Modern rings have inherent deficiencies that detract from their efficiency and general attractiveness. For example, the interstices of the three rings occasionally line up in a way that allows hot gases to flow easily through the interstices and thereby bypass the rings undesirably. When hot gases flow through the interstices, the force provided by the gases to extract a used capsule from the chamber and take a new cartridge into the chamber is undesirably reduced. - In addition, when hot gases flow through the interstices, the hot gases can burn the ends of the rings and thereby undesirably enlarge the interstices. It is desirable to provide rings that thereby attenuate the undesirable gas flow.
    Modern gas pipes have inherent shortcomings that - depreciate their effectiveness and attractiveness. For example, modern gas tubes can overheat and lose resistance, particularly during sustained fully automatic firing of the firearm. The increased level of heat associated with sustained fully automatic firing can result in undesirable thermal expansion of the gas pipe, both radially and longitudinally. Such thermal expansion can be substantially beyond a value that can be accommodated by the space available in the firearm. Such thermal expansion can cause sliding / gap fittings to become interference fittings. That is, a slip fitting can undesirably become a non-slip fitting, that is, it can - freeze or jam. When the gas pipe overheats, the weakened and expanded gas pipe can bend and become damaged, as it is not free to slide, thus rendering the firearm inoperable. It is desirable to provide methods and systems to mitigate overheating in gas operated firearms. Retreating back and forth from the bolt holder can cause a firearm's cyclical rate to increase substantially. This increase in the cyclical rate can reduce the reliability of the firearm and can increase the wear and tear on the firearm. It is desirable to provide methods and systems to attenuate both the forward and backward recoil of the bolt support.
    The gas orifice of a modern MI6 / M4 firearm is subject to erosion caused by bullet friction and propellant bomber. Such erosion results in the widening of the gas orifice and consequently an undesirable increase in the firearm's cyclical rate over time. M4 rifles, which have the gas orifice located in a rear band of the front sight, are particularly susceptible to such erosion. This undesirable increase in the cyclical rate can eventually result in malfunction and damage to the firearm. It is desirable to provide conditions for - placing the gas orifice and measuring the gas in a way that does not result in a higher cyclical rate over time.
    Gas-operated firearms, such as those in the MI16 / MA4 family of firearms, have bolt and barrel lock ears that secure the bolt on the barrel during firing. Failure of the locking ears can render the firearm inoperable. It is desirable to provide more robust locking ears for such firearms, in order to reduce the undesirable occurrence of failure.
    The cam of a bolt bracket of such firearms cooperates with the bolt of the bolt cam to lock and unlock the latch ears. In cases where the pressure of the gas system is increased and the cyclical rate is consequently also increased, such as by erosion of the gas orifice, the cam can cooperate with the cam pin to try to unlock the lock ears very early in the firing cycle. . In this case, the gas pressure in the chamber can be too high to allow the locking ears - to rotate completely. When this occurs, one or more of the locking ears may break. Again, this can render the firearm inoperable, thereby potentially resulting in loss of life in situations such as during police use and field battle operations. It is desirable to ensure that the gas pressure in the chamber is low enough to allow the locking ears to rotate completely when the bolt is being unlocked.
    These reliability drawbacks of such modern firearms can result in their failure. Failure of the firearm, 5 particularly during critical police operations and pitched battles, can result in loss of life. Therefore, it is desirable to provide firearms that do not have these reliability drawbacks.
    SUMMARY OF THE INVENTION In accordance with modalities further described herein, - methods and systems are provided to improve firearms reliability, such as firearms of the MI6 / MA4 family of firearms. For example, one embodiment may comprise a firearm with a bolt with a plurality of locking ears that is configured to have a shear area that is at least approximately 1.3 times that of a 15 "standard MI6 / M4. piston can be formed in the bolt and can have a plurality of rings that is configured to cooperate with the piston to reduce gas leakage beyond the piston. Each of the rings can have a key formed in it and an interstice formed in it, in such a way that the interstice of a ring is configured to receive at least a portion of the key of another ring. A ferrule holder can have the ferrule movably attached to it. The ferrule holder can have a double cut cam. The double cut cam may have a starting point at an unlocked position of the bolt that is substantially the same as that of the standard M16 cam and may have an unlocking cam surface that has sufficient permanence to increase the delay of the start of disengagement. locking when the bolt holder is used on an M4 carbine. Thus, the permanence can be increased with respect to an M4 carbine that does not have a double cut cam. A weight can be movably disposed within the bolt support. The weight can be configured to prevent back and forth of the bolt support. A long stroke bracket key can be attached to the bolt bracket and can be configured to facilitate a bolt bracket stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of a standard M16 / MA4. A gas pipe can be configured to supply gas from a firearm barrel to the piston via the bracket key. The gas pipe may have a heat radiator formed in at least a portion of the gas pipe. A gas metering plug may have a gas metering hole configured to measure gas from the firearm barrel in the firearm bolt holder. The gas measurement hole can be located away from a gas hole in the firearm. A front sight block may have a rear band and a front band to attach the front sight block to the barrel and may have a gas passage formed in the front band to facilitate the flow of gas from the barrel to a gas pipe from the gun. fire.
    According to one embodiment, a bolt group may have a bolt with a plurality of locking ears. The locking ears can be configured to have a shear area that is at least approximately 1.3 times that of a standard MI16 / M4. A piston can be formed in the bolt and can have a plurality of rings configured to - cooperate with the piston to reduce gas leakage beyond the piston. Each of the rings may have a key formed in it and an interstice formed in it, such that the interstice of a ring is configured to receive at least a portion of the key from another ring. A bolt holder can have the bolt movably attached to it. The bolt holder may have a double cut cam. The double cut cam has a starting point at an unlocked position of the bolt that is substantially the same as that of the standard M16 cam and may have an unlock cam surface that has sufficient permanence increase to delay the start of unlock when the holder bolt is used on an M4 carbine. Thus, the permanence can be increased with respect to an M4 carbine that does not have a double cut cam. A weight can be movably disposed within the bolt support. The weight can be configured to prevent back and forth of the bolt support. A bracket key can be attached to the bolt bracket and can be configured to facilitate a bolt bracket stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of a standard M16 / M4.
    According to one embodiment, a ring can be configured to be received at least partially within a piston groove. A key can be formed on the ring and an interstice can be formed on the ring. The interstice of a ring can be configured to receive at least a portion of the key from another ring. Thus, the rings can be interlocked so that they cannot rotate to a position where the interstices align in a way that allows hot gases to escape through the interstices.
    According to one embodiment, a gas pipe can be configured to supply gas from a barrel of a firearm to a piston of the firearm. A heat radiator can be formed in at least a portion of the gas pipe according to an embodiment. The heat radiator can prevent the gas pipe from overheating. The gas pipe can be configured in such a way that thermal expansion does not cause the gas pipe to turn on or be damaged by firearm cycling.
    According to one embodiment, a device may comprise a gas metering plug with a gas metering hole that is configured to measure gas from a barrel of a firearm in a ferrule bracket for the firearm. The gas measurement hole can be located away from a gas hole in the firearm, so as not to be subjected to erosion caused by bullet friction and propellant bomber.
    According to one embodiment, unwanted forward and backward retention of a gas operated firearm bolt holder can be inhibited. For example, a device may have a bolt holder and an anti-kickback weight movable within the bolt holder. The weight can be configured to prevent both backward and forward latch support.
    According to one embodiment, a bolt holder may have a double cut cam formed thereon. The double cut cam may have a starting point at an unlocked position of the bolt that is substantially the same as that of the standard M16 cam. The double cut cam may have an unlock cam surface that has sufficiently increased permanence to delay the initiation of unlock when the bolt holder is used on an M4 carbine.
    According to one embodiment, a bolt and barrel extension for an M16 / M4 firearm can have a plurality of locking ears The locking ears can be configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4. A bracket key can be configured to facilitate a bolt support stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of a standard M16 / M4. A stop can be configured to limit the displacement of the bolt support. The stop can be approximately 0.360 inches (9.144 millimeters) (less than the standard M16 / M4.
    According to one embodiment, the gas orifice of a firearm can move forward along the barrel in order to delay the time in which gas acts on the bolt of the firearm after a cartridge is triggered and to reduce the pressure of the gas acting on the bolt. In this way, the cyclic rate of the firearm can be reduced and the reliability of the firearm can be increased.
    These resources can cooperate to provide a safer and more reliable firearm. For example, long or extended locking ears, gas piston rings, and the gas pipe can all cooperate to make the firearm's gas system more robust. As an additional example, the anti-kickback weight, the gas measuring plug, the gas passage in the front sight band and the double cut cam can cooperate to reduce the cyclical rate and reduce unwanted wear on the firearm.
    The scope of the disclosure is defined by the claims, which are incorporated in this section by reference. A more complete understanding of modalities will be provided to those skilled in the art, as well as realizing their additional advantages, through a consideration of the following detailed description of one or more modalities. Reference will be made to the attached sheets of the drawings which will first be briefly described.
    BRIEF DESCRIPTION OF THE DRAWINGS The figure | it is a perspective view of a bolt, such as for an MI6 / M4, showing keyed piston rings exploded in it according to one modality.
    Figure 2 is an enlarged side view of a piston of Figure 1 with a keyed piston ring installed on it and a keyed piston ring partially installed on it according to one embodiment.
    Figure 3 is an enlarged perspective view of the piston of figure 1 with two keyed piston rings installed on it according to an embodiment.
    Figure 4 is a perspective view of a piston, as for an HK416, showing keyed piston rings blown on it according to one embodiment.
    Figure 5 is an enlarged side view of the piston of figure 4 with a keyed piston ring installed on it and a keyed piston ring partially installed on it according to an embodiment.
    Figure 6 is an enlarged perspective view of the piston of Figure 4 with two keyed piston rings installed on it according to an embodiment.
    Figure 7 is a perspective view of a firearm, such as an MI6 / MA4, with the bolt of Figure 1 according to an embodiment.
    Figure 8 is a perspective view of a firearm, such as an HK416, with the piston of Figure 4 according to an embodiment.
    Figure 9 is a side view of a dissipating gas tube - heat for a firearm according to an embodiment.
    Figures 10A-10C are cross-sectional views showing the heat dissipating gas tube and a gas measuring plug according to an embodiment.
    Figure 11 is a cross-sectional side view of a rear end of the gas pipe and a key of the support that receives the rear end of the gas pipe according to an embodiment.
    Figure 12 is a flowchart showing a method for making a firearm with a heat dissipating gas tube according to an embodiment.
    Figure 13 is a top view of a bolt support with an anti-recoil assembly according to an embodiment.
    Figure 14 is a side view of the bolt support of Figure 13 according to an embodiment.
    Figure 15 is an enlarged side view of the anti-recoil assembly in figure 13 showing an anti-recoil weight in a zero or non-impact position according to an embodiment.
    Figure 16 is an enlarged side view of the anti-recoil assembly of figure 13 showing the anti-recoil weight in a rear impact position according to an embodiment.
    Figure 17 is an enlarged side view of the anti-recoil assembly of figure 13 showing the anti-recoil weight in a forward impact position according to an embodiment.
    Figure 18 is an exploded view of the bolt support of figural3 according to an embodiment.
    Figure 19 is an exploded top view of plungers, springs and the anti-recoil weight of Figure 18 according to an embodiment.
    Figure 20 is an exploded perspective view of the pistons, springs and the anti-recoil weight of figure 18 according to an embodiment.
    Figure 21 is a top assembly view of the pistons, springs and the anti-recoil weight of figure 18 according to an embodiment.
    Figure 22 is a perspective view of the pistons, springs and anti-recoil weight of Figure 18 according to an embodiment.
    Figure 23 is a perspective view of a bolt holder modified according to one embodiment.
    Figure 24 is an end view of the modified ferrule support of Figure 23 according to an embodiment.
    Figure 25 is a side view of an anvil of Figure 23 according to an embodiment.
    Figure 26 is an end view of the modified ferrule support of figure 23 showing an impact area and a support area according to an embodiment.
    Fig. 27 is an end view of the modified ferrule holder of Fig. 23 showing a plunger according to an embodiment.
    Figures 28A-28C are several views of the anti-recoil assembly according to an embodiment.
    Figures 29A-29C are various views of the anti-recoil weight according to an embodiment.
    Figures 30A-30D are various views of the plunger according to an embodiment.
    Figures 31A4-31C are various views of the anvil according to one embodiment.
    Figures 32A-32F are several views showing a modification of the bolt support according to an embodiment.
    Figures 33A and 33B are several views showing a double cut cam according to an embodiment.
    Fig. 34A-34P are several views showing a bracket key according to an embodiment.
    Figure 35 is a cross-sectional side view of a portion of a standard 5.56 mm M16 / M4 firearm, that is, modern, with the bolt group shown in its fully forward position and fully backward position.
    Figure 36 is a cross-sectional side view of a portion of a 5.56 mm and 6.8 mm MI16 / M4 firearm with a bolt and barrel extension with more robust extended latch ears and other improved features, with the bolt group shown in two positions - according to a modality.
    Figure 37A is an enlarged cross-sectional side view showing the locking ears of both the 5.56 mm standard M16 / M4 firearm (upper portion) and the more robust extended MI6 / M4 5.56 mm and 6.8 mm firearms. improved (lower portion) according to a modality.
    Figure 37B is an enlarged side view showing the barrel extensions of both the 5.56 mm standard M16 / M4 firearm (upper barrel extension) and the MI6 / M4 5.56 mm firearm barrel extension and
    6.8 mm improved (extension of the lower pipe) according to one modality. Figure 38 is an end view showing the feeding chutes of a standard, ie modern, 5.56 mm MI6 / M4 firearm.
    Figure 39 is an end view showing the feed ramps for the M16 / M4 5.56 mm and 6.8 mm firearms according to an embodiment.
    Figure 40 shows the front sight block and gas tube of a standard, that is, modern M4 carbine.
    Figure 41 shows a measurement plug installed in a front sight block with the gas orifice in the standard location and showing the use of a thick-walled gas tube according to one modality.
    Figure 42 shows a measurement plug installed in a front sight block with the gas port moved to a forward location and showing the use of a thick-walled gas tube according to one modality.
    Figure 43 shows a measurement plug installed in a front sight block with the gas hole moved to a forward location (with an enlarged view of the installed measurement plug) and - showing the use of a wall gas tube thick according to a modality.
    Figure 44 shows a measuring plug installed in a front sight block with the gas hole moved to a forward location (with an enlarged view of the measuring plug and gas pipe - uninstalled) and showing the use of a pipe thick-walled gas according to one modality.
    Figure 45 shows the anti-kickback weight with a chamfer formed on it to provide an interstice for the dog according to a modality. Figure 46 shows a cam pin with a chamfer formed thereon to provide an interstice for the cam according to an embodiment. Modalities of the present invention and its advantages are best understood by referring to the following detailed description. It should be noted that like reference numbers are used to identify like elements illustrated in one or more of the figures.
    DETAILED DESCRIPTION OF THE INVENTION Methods and systems are provided to improve the reliability of firearms, such as firearms of the M16 / M4 family of firearms. For example, according to one embodiment, a firearm may have a bolt with a plurality of extended locking ears that is configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4. A piston can be formed in the bolt and can have a plurality of rings that are configured to cooperate with the piston to reduce gas leakage beyond the piston. Each of the rings may have a key formed in it and an interstice formed in it, such that the interstice of a ring is configured to receive at least a portion of the key from another ring. A bolt holder can have the bolt movably - attached to it. The bolt holder may have a double cut cam. The double cut cam may have a starting point at an unlocked position of the bolt that is substantially the same as that of the standard M16 cam and may have an unlock cam surface that has sufficient permanence increase to delay the start of unlocking when the bolt support is used on an M4 carbine (compared to the delay provided by the standard cam surface). This delay can be as small as 0.00016 seconds, for example. This delay is based on the time it takes for an M855 grain 62 bullet to travel 5.5 inches (139.7 mm) past the gas hole in an M16 rifle barrel at an average speed of 3,056 feet (0.93 meters) per second.
    During this time, the chamber pressure drops significantly in the rifle, but not in the carbine that has a gas orifice 2 inches closer to the chamber than the rifle, thus causing the gas to start acting in the gas system 0.00016 seconds better on the carbine than on the rifle The permanence is increased in order to recover the delay of 0.00016 seconds and the beneficial pressure drop that is present in the rifle, and not in the standard carbine.
    The additional permanence required on the cam is 0.036 inches (0.914 millimeters), if the support is at a total speed of 20 feet (6.1 meters) per second, which is 153 times less than the bullet, since 5.5 inches ( (139.7 millimeters) divided by 153 = 0.036 inches (0.914 millimeters), thus increasing the 0.062 inch (1.575 millimeters) permanence is more than significant.
    The additional stay of 0.062 has two advantages.
    It provides the time needed to reduce the pressure of the chamber that tends to connect the locking ears at the beginning of the release and allows 0.062 additional support of the bolt recoil before safely retracting the striker, thus reducing the chance of an imperfect shot from the recoil of the occasional support.
    A weight can be movably disposed within the bolt support.
    The weight can be configured to prevent back and forth of the bolt support.
    A bracket key can be attached to the bolt bracket and can be configured to facilitate a bolt bracket stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of a standard M16 / M4.
    A gas pipe can be configured to supply gas from a firearm barrel to the piston via the bracket key.
    The gas pipe may have a heat radiator formed in at least a portion of the gas pipe.
    A gas metering plug may have a gas metering hole configured to measure gas from the firearm barrel in the firearm bolt holder.
    The gas measurement hole can be located away from a gas hole in the firearm. A front sight block may have a rear band and a front band to attach the front sight block to the barrel and may have a gas passage formed in the front band to facilitate gas flow from the barrel to a gun gas tube - fire. These features, as well as others, and their advantages are discussed here in detail.
    The cooperation of these resources can provide a safer and more reliable firearm. For example, long or extended locking ears, gas piston rings, and the gas pipe can cooperate to make the firearm's gas system more robust. As an additional example, the anti-kickback weight, gas measurement buffer, gas passage in the front sight band and the double cut cam can cooperate to reduce the cyclical rate and make the extended locking ears easier to use.
    Methods and systems for inhibiting gas leakage and / or unwanted heat build-up in a gas operated firearm are disclosed. According to one embodiment, a pair of rings can be configured to interlock with respect to each other in such a way that the rings rotate within a piston groove in a firearm gas system. Since the rings rotate in unison, they do not line up in a way that readily facilitates undesirably increasing the flow of gas beyond the piston. Such rings can generally be used with both types of MI16 / M4 and HK416 firearms.
    According to one embodiment, a gas tube is revealed that tolerates more heat associated with sustained fully automatic firing - from a firearm. The gas pipe is less prone to overheating and accommodates better thermal expansion. Thus, the firearm cycles and fires more evenly and is more reliable. A gas pipe like this can generally be used with M16 / M4 types of firearms and in general cannot be used with HK416 types of firearms, since HK416 types of firearms use a gas system substantially different.
    According to one embodiment, methods and systems are provided to inhibit undesired back and forth of a bolt holder of a gas operated firearm, such as a fully automatic gas operated firearm. An anti-recoil assembly, including an anti-recoil weight, can mitigate undesirable acceleration of a firearm's cyclic rate because of gas hole erosion and can thus reduce wear and increase the firearm's reliability.
    According to one embodiment, a gas measurement port may prevent the firearm's cyclic rate from increasing undesirably as the gas port is eroded. The gas orifice can move forward, from the rear sight band to the front sight band, to reduce pressure in the gas system and reduce the firearm's cyclical rate.
    According to one embodiment, more resistant extended locking ears on the bolt and on the extension of the barrel can be provided to prevent their rupture. The extended lock ears are particularly suitable when the firearm is being operated with cartridges that provide greater chamber pressure. A double-cut cam can - provide greater permanence in such a way that the pressure in the chamber has time to decrease to a point where the latch ears (either extended latch ears or standard latch ears) can be more reliably and securely disengaged.
    Examples of modalities of gas keyed piston rings - are discussed in detail below. Examples that are suitable for use with the MI6 / M4 rifle are discussed with reference to figures 1-3 and 7. Examples that are suitable for use with the HK416 rifle are discussed with reference to figures 4-6 and 8. The gas piston of the M16 and M4 is an integrated part of the bolt that is slidably arranged inside a gas cylinder formed in the bolt holder of the firearm. The gas cylinder, that is, the bolt support, moves with respect to the gas piston. The figure | it is a perspective view of a bolt 100 of a gas operated firearm 700 (figure 7) according to an embodiment. Bolt 100 can be a bolt on an M16 rifle or MA4 carbine, for example. Hasp 100 may have a piston 101 formed therein. A groove 102 can be formed circumferentially around piston 101. A pair of rings 105 is shown exploded on bolt 100. Rings 105 may comprise a first ring 105a and a second ring 105b. Rings 105 - can be configured to be received at least partially within the groove 102 of piston 101 of the gas operated firearm 700. A key 108 can be formed on each of the rings
    105. The key 108 can extend in general perpendicular to a plane of each of the rings 105. The key 108 can have a cross section in general rectangular when taken in either of two planes in general orthogonal. That is, the walls of the ring can generally define a rectangle. An interstice 107 can be formed in each of the rings
    105. The interstice 107 of each of the rings 105 can be configured to - receive at least a portion of the key 108 from another of the rings 105. The interstice 107 can have a generally rectangular cross section when taken in either of two planes in the general orthogonal. Thus, a pair of rings 105 can be configured to lock with each other in such a way that the two rings 105 can rotate, but can only rotate substantially in -unison with respect to each other. In one embodiment, the key 108 and the interstice 107 of each of the rings 105 can be formed in such a way that a pair of the rings 105 is nested with the key 108 of each of the rings 105 which is arranged within the interstice 107 of each one of the other rings 105, while rings 105 are substantially flush with each other. Nesting rings 105 locks rings 105 in such a way that rings 105 rotate in unison.
    In one embodiment, the interstices 107 of the two rings 105 can be diametrically opposed to each other when rings 105 are locked. Since the two rings 105 rotate substantially in unison, the interstices 107 do not line up in a way that favors greater gas flow than rings 105.
    In one embodiment, rings 105 may be formed of stainless steel. For example, rings 105 can be formed of 17-4 stainless steel. Various other materials, including refractory materials such as ceramics, are contemplated.
    In one embodiment, the groove 102 can be substantially rectangular in cross-section. In one embodiment, rings 105 can also be substantially rectangular in cross section and thus can in general be complementary in size and shape with respect to groove 102.
    Figure 2 is an enlarged side view of piston 101 with the first ring 105a completely installed therein and the second ring 105b partially installed thereon according to an embodiment. The rings 105 - can be temporarily bent or elastically deformed in order to slide over the piston 101 and into the groove 102. The key 108 of the second ring 105b is positioned to be received at least partially within the interstice 107 of the first ring 105a.
    Figure 3 is an enlarged perspective view of piston 101 - with two rings 105 installed in it according to an embodiment. The two rings 105 are seated within the groove 102. The key 108 of the second ring 105b is arranged at least partially within the interstice 107 of the first ring 105a and the key 108 of the first ring 105a is arranged at least partially within the interstice 107 of the second ring 105b.
    The piston of an HK416 is arranged in a gas cylinder of a firearm 800 (see figure 8) instead of in a cylinder of the bolt holder, as discussed here with respect to the MI6 / M4. Figures 4-6 show a system to prevent undesirable gas flow around the piston of a HK416 or similar and are discussed in detail below.
    Figure 4 is a perspective view of piston 400 of a firearm operated by gas 800 (figure 8) according to an embodiment. The piston 400 can be a piston of an HK416 rifle, for example. A groove 402 can be formed circumferentially around piston 400. A pair of rings 405 is - shown exploded on piston 400. Rings 405 can comprise a first ring 405a and a second ring 405b. Rings 405 can be configured to be received at least partially within groove 402.
    A 408 key can be formed on each of the rings
    405. The key 408 can generally extend perpendicularly to a plane of the rings 405. The key 408 can have a cross section in general rectangular when taken in either of two planes in general orthogonal.
    A 407 interstice can be formed in each of the rings
    405. The interstice 407 of each of the rings 405 can be configured to - receive at least a portion of the key 408 from another of the rings 405. The interstice 407 can have a generally rectangular cross section when taken in either of two planes in the general orthogonal. Thus, the rings of a pair of rings 405 can be configured to lock with each other in such a way that the two rings 405 can rotate, but can only rotate - substantially in unison with respect to each other.
    In one embodiment, the key 408 and the interstitial 407 of each ring 405 can be formed in such a way that a pair of rings 405 is nestable with the key 408 of each of the rings 405 which are arranged at least partially within the interstitium 407 of each of rings 405 while rings 405 are substantially level with respect to each other. Nesting rings 405 locks rings 405 in such a way that rings 405 rotate in unison.
    In one embodiment, the interstices 407 of the two rings 405 can be diametrically opposed to each other when rings 405 are locked. Since the two rings 405 rotate substantially in unison, the interstices 407 do not align in a gas way beyond the rings
    405.
    In one embodiment, the 405 rings can be formed of stainless steel. For example, rings 405 can be formed of 17-4 stainless steel. Various other materials, including refractory materials such as ceramics, are contemplated.
    In one embodiment, the groove 402 can be substantially rectangular in cross section. In one embodiment, rings 405 can also be substantially rectangular in cross section and thus can in general be complementary in size and shape with respect to groove 402.
    Figure 5 is an enlarged side view of piston 400 with the first ring 405a partially installed therein and the second ring 405b completely installed thereon according to an embodiment. Rings 405 - can be temporarily bent or elastically deformed in order to slide over piston 400 and into groove 402. The key 408 of the second ring 405b is positioned to be received at least partially within the interstice 407 of the first ring 405a.
    Figure 6 is an enlarged perspective view of piston 400 - with two rings 405 installed therein according to an embodiment. The two rings 405 are seated within the groove 402. The key 408 of the second ring 405b is arranged at least partially within the interstice 407 of the first ring 405a.
    According to various embodiments, a device may comprise a first ring 105a, 405a configured to be at least partially received within a groove 102, 402 of a piston 101, 400 of a gas operated firearm 700, 800. A second ring 105b, 405b can be configured to be at least partially received within groove 102, 402. The first ring 105a, 405a and second ring 105b, 405b can be configured to traverse one another in such a way that the first ring 105a, 405a and the second ring 105b, 405b rotate substantially in unison within the groove 102, 402. Various devices for carrying out such locking are contemplated. The use of a keyway 108, 408 and an interstice 107, 407 as discussed here is by way of example only, and not by way of limitation.
    Any desired number of rings 105, 405 and any desired number of grooves 102, 402 on piston 101, 400 can be used. For example, two grooves 102, 402, each containing two rings 105, 405 or three rings 105, 405 each, can be used. Thus, various embodiments can comprise 2, 3, 4, 5, 6 or more rings 105, 405.
    In various embodiments, interstices 107, 407 can be partial interstices that do not extend completely through rings 105,
    405. For example, the interstices 107, 407 can be sufficiently sized to receive at least a portion of the keys 108, 408, although not forming a separation in the rings 105, 405. Thus, the interstices 107, 407 can be depressions, recesses, or clippings, for example. Any desired number and configuration of the interstices 107, 407 and the keys 108, 408 can be used. The interstices 107, 407 and the braces 108, 408 can in general be complementary to each other. The interstices 107, 407 and the braces 108, 408 can be non-complementary in relation to each other.
    Piston rings 105, 405 do not need to be received into a groove 102, 402 of piston 101, 400. Instead, piston rings 105, 405 can be placed over piston 101, 400 and can be held in position by any desired device or structure. The piston rings
    105, 405 can cooperate with piston 101, 400 to reduce gas leakage in addition to piston 101, 400. According to one embodiment, piston 400 can be configured to fit into a gas cylinder of a relatively hot firearm 800 piston 400 formed on a bolt of the firearm 800, for example.
    Piston 400 can be configured to fit a gas cylinder of a firearm type HK416 800. Alternatively, piston 101 can be formed over a bolt 100 of firearm 700. The gas cylinder can be formed in a - firearm bolt support 700. Piston 101, 400 can fit in a gas cylinder of a firearm type M16 / MA4, for example.
    Figure 7 is a perspective view of firearm 700 with piston 101 formed in bolt 100 according to an embodiment.
    Firearm 700 can be an M16 or MA4, for example.
    Firearm 700 may have one or more pairs of rings 105 disposed in one or more grooves 102 around piston 101 thereof to reduce gas leakage beyond piston 101, as discussed here.
    Figure 8 is a perspective view of a firearm 800 with piston 400 according to an embodiment.
    The firearm 800 - can be an HK416, for example.
    Firearm 800 may have one or more pairs of rings 405 disposed around piston 400 thereof to reduce gas leakage beyond piston 400, as discussed here.
    In operation, a sniper fires the 700, 800 and hot high pressure gas is provided by the cartridge.
    As shown in figure 7 for a type of rifle MI6 or MA4, the gas travels through a front sight (figure 40) to gas pipe 705, then through gas pipe 705 and a key from support 752 to the support of the bolt 702, where the gas moves the bolt holder 702 and, consequently, the bolt 100, in order to extract the used cartridge and place a new cartridge in the chamber. Bolt 100 is disposed within a gas cylinder 701 formed in bolt holder 702. As shown in figure 8 for a type of rifle HK416, the gas moves piston 400 inside gas cylinder 801 in order to move an arm of 802 operating lever or stem to extract a used cartridge and place a new cartridge in the chamber.
    In any case, the use of rings 105, 405 with interstices 107, 407 and keys 108, 408 that facilitate the nesting or locking of rings 105, 405 substantially attenuates the undesirable gas flow beyond piston 101, 400. Nested rings or locked 105, 405 provide greater resistance to such gas flow, preventing the interstices 107, 407 from aligning with respect to each other. For example, gas can be substantially forced to flow through a longer and more bypassed path under rings 105, 405 of which the gas re-emerges to flow past piston 101, 400. This longer and more bypassed path around four corners substantially inhibits such a gas flow and consequently inhibits gas leakage beyond piston 101, 400.
    Firearms 700 having piston 101 formed on its bolt 100 can be referred to here as types of firearms M16 / M4 or M16 / MA4, or members of an M16 / M4 family of firearms. Firearms 800 that do not have piston 400 formed in a bolt of the same can be referred to here as HK416, types of firearms HK416, or members of an HK416 family of firearms.
    Thus according to one or more embodiments, two rings 105, 405 can be nested in such a way that leakage of undesirable gas beyond piston 101, 400 is substantially inhibited. In this way, damage to the rings can be substantially attenuated and soot formation in the components of the firearm 700, 800, such as within its receiver, can be substantially attenuated. By inhibiting gas leakage beyond piston 101, 400, the firearm's reliability is substantially increased and the firearm's operation becomes more uniform.
    It is anticipated that 60-shot and 100-shot cameras may soon replace the current standard 30-shot M16 / M4 cameras, the consequent heat problems associated with such increased capacity (and the rapid extended firing resulting from the firearm) also need be addressed. The M4 705's gas tube can soften and bend (and thus become inoperative) in just four bursts of 100 shots. The gas piston rings of the M16 can burn with just two bursts of 100 shots. To reduce such heating problems, keyed piston rings 104, 405 and a 705 heat dissipation gas tube can be used, as discussed here.
    More particularly, some gas operated firearms 700 use gas tube 705 to deliver very hot high pressure gas to piston 101 formed over bolt 100, as discussed here. The M6 and M4 are examples of firearms 700 that deliver gas to piston 101 via the modern gas tube 705. When firearm 700 is fired repeatedly for an extended period of time, such as during fully automatic firing extended using a plurality of high capacity chambers, the modern gas pipe 705 can heat up substantially. In such cases, the temperature of the modern gas pipe 705 may be excessive and thus may result in undesirable damage to the modern gas pipe 705.
    When the gas pipe 705 heats up, the length and / or diameter of the gas pipe 705 may increase substantially because of thermal expansion. Such thermal expansion can interrupt the firing cycle of the firearm 700 and thus render the firearm 700 inoperable. As such, it is desirable to provide methods and systems for attenuating heat build-up and accommodating thermal expansion of 705 gas tubes in gas-operated firearms.
    As shown in figure 9, a 705 heat-dissipating gas tube may have greater heat dissipation in such a way that, during fully automatic extended firing, the 705 gas tube can remain at a sufficiently low temperature so as not to incur substantial damage. The increased heat accommodation tends to allow the 705 gas pipe to continue to function properly when heated, particularly when heated by sustained fully automatic firing. Examples of more heat-tolerant and / or more heat-dissipating 705 gas pipe modalities are discussed in detail below.
    Figure 9 shows the gas pipe 705 for a type of firearm M16 and / or M4 700 according to an embodiment. The gas tube 705 - may have a heat sink formed in it. For example, gas pipe 705 may have screw threads 707 formed over a substantial portion of the length of gas pipe 705.
    Other examples of heat sinks can include fins, fingers, flanges, protuberances, and any other structures that tend to increase the surface area of the 705 gas tube and thus increase the heat radiation of the 705 gas tube. A plurality of spaced annular fins can substantially surround the gas pipe 705, for example. A plurality of longitudinal fins may extend over a length of the gas pipe 705, for example. A spiral fin can extend around a length of the 705 gas pipe, for example. The fins can form a V-notch with approximately 60 degrees between opposite walls, for example.
    The outer diameter and / or inner diameter of the gas pipe 705 can be increased to increase the ability of the gas pipe 705 to operate by fully automatic extended firing. For example, in one-mode, the outside diameter of the 705 gas pipe or a portion of the 705 gas pipe can be increased from the standard 0.180 inch (4.572 mm) to approximately 0.218 inch (5.537 mm).
    According to one embodiment, the 707 threads can be a uniform standard thread shape, such as 1 / 4-32 UNEF threads (Unified
    National Extra Fine), for example. 707 threads can be helical threads, for example. Several other types of 707 threads are contemplated. More than one type of 707 threads can be used. Any desired combination of the 707 threads or types of the 707 threads can be used. —In one embodiment, the 707 threads can extend over a portion of the length of the gas pipe 705. For example, the 707 threads can extend along a portion of the gas pipe 705 that is spaced from the ends, 721 and 722 of gas pipe 705. Thus, the ends 721 and 722 of gas pipe 705 may not have threads 707 formed therein. In one embodiment, the 707 - threads can extend across the entire 705 gas pipe.
    707 threads do not have to be conventional threads. 707 threads do not have to be any standard thread, for example, threads made to an accepted standard. 707 threads can be formed with a matrix. 707 threads can be formed by machining.
    707 threads can be formed by laser cutting. 707 threads can be formed by any desired method.
    707 threads can be integral with gas pipe 705. 707 threads can be formed separately from gas pipe 705 and / or can be attached to pipe 705. 707 threads can be formed from both the same material as gas pipe 705 how much can be formed of a different material with respect to the gas pipe 705.
    In one embodiment, the 707 threads can only be used for heat dissipation. In one embodiment, the 707 threads can have another use without dissipating heat. For example, 707 threads can be used — to mount gas pipe 705 on firearm 700. Thus, at least one end of gas pipe 705 can be screwed into a threaded opening on firearm 700.
    Gas tube 705 can be configured to attach to a modern firearm 700. For example, gas tube 705 can have a first fold 711 and a second fold 712 formed in it to facilitate assembly of the gas tube 705 in a modern firearm 700. The first fold 711 and the second fold 712 can align the front and rear ends of the gas pipe 705 with their respective connections to the armadefogo700. A flange 725 can be formed at the rear end of gas tube 705 to facilitate a desired fit on the bracket key 752 (figures 10A and 11) of the firearm 700.
    In one embodiment, the gas pipe 705 may be formed of stainless steel. For example, gas pipe 705 may be formed of 347 stainless steel. In one embodiment, gas pipe 705 may be formed of a refractory material, such as a ceramic material.
    The gas pipe 705 and, more particularly, the threads 707 can have any desired finish. For example, several textures, coatings and treatments that improve heat dissipation are contemplated. Different parts of the 705 gas tube can have different textures, coatings, or treatments.
    Figures 10A-10C are cross-sectional side views of portions of the firearm 700 with gas tube 705 according to an embodiment. The gas pipe 705 and / or rings 105 (figures 1-3) can be provided as a kit to improve the quality of modern firearms such as the M16 and M4. Thus, gas pipe 705 and rings 105 can be provided and installed together. Such quality improvement can be done in the field, in an arms factory, or in a maintenance warehouse. The gas pipe 705 and / or rings 105 can be exchanged together. Both the gas pipe 705 and the rings 105 can be changed on their own (without changing the other). Thus, gas pipe 705 and rings 105 can be exchanged or used independently of each other.
    In operation, a sniper fires the 700, 800 and hot high pressure gas is provided by the cartridge. For a type of rifle Ml6 or MA4, the gas travels through a front sight 4501 to the gas pipe 705, then through the gas pipe 705 and the bolt of the bolt holder 752 to the bolt holder 702, where the gas it moves the bolt holder 702 and, consequently, the bolt 100, in order to extract the used cartridge and place a new cartridge in the chamber. The bolt 100 is arranged inside a gas cylinder 701 formed in the bolt holder
    702. During sustained fully automatic firing, the 705 gas tube is exposed to a substantial amount of hot gases from the deflagrated cartridges. According to one embodiment, the 707 threads provide a greater surface area to radiate this heat so that the temperature of the gas pipe 705 can be maintained within an acceptable range.
    Referring again to figure 9, as the gas tube 705 heats up, it expands in both length and diameter. According to one embodiment, the length, dimension M, of gas pipe 705 is sufficiently small to accommodate thermal expansion of gas pipe 705 in length without causing the firearm 700 to function improperly. Such malfunction can occur when the length, dimension M, of gas tube 705 is large enough that thermal expansion makes it very long and its rear end impacts the bracket key 752 when the firearm cycles. Such impaction of the gas pipe 705 may cause the gas pipe 705 to deform and fail.
    According to one embodiment, the diameter, dimension N, of gas pipe 705 is small enough to accommodate thermal expansion of gas pipe 705 in diameter, particularly at the interface of the keyed support 752 thereof, without causing the firearm 700 malfunctions. A malfunction like this can occur when the diameter, dimension N, of gas pipe 705 is large enough that thermal expansion makes it too tight inside the bracket key 752 and its rear end turns on or freezes instead to slide into the bracket key 752. Such connection of gas pipe 705 may cause gas pipe 705 to deform and fail. The rear end of the gas pipe 705 can be a flange 725. Figure 11 is a cross-sectional side view of a rear end of the bracket key 752 of figure 10. The rear end or flange 725 of the gas pipe 705 is received in. of the 752 bracket key. When a modern 705 gas tube expands in length, such as because of the sustained fully automatic firing heat, it may come out of the base or interfere within the 752 bracket key, in such a way that the 705 gas doubles undesirably because of such expansion. Such exit from the base and / or folding may prevent uniform cycling or otherwise prevent desired operation of the firearm 700.
    According to one embodiment, the gas pipe 705 may be of shorter length, dimension M of figure 9, in such a way that additional or desirable interstice, dimension T of figure 11, is provided between the flange 725 and any portions of the key of the support 752 that the flange 725 may leave the base or interfere during such expansion. The T dimension is partially defined by the M dimension, which is further discussed here. The M dimension is designed in such a way that the T dimension does not decrease until —zero as the firearm 700 heats up. The T dimension can be 0.227- 0.289 inches (0.58-0.3 cm) based on the maximum temperature difference between the gas pipe and the barrel of the MI6 rifle at 2.380 º F x 0.00000636 (Coefficient of thermal expansion for steel) x 15 inches (38.1 cm) long (M) + 0.062 tolerance.
    According to one embodiment, gas pipe 705 may be of shorter length, dimension M, and flange 725 may have a reduced diameter, dimension N. Thus, undesirable interferences can be mitigated and cycling uniformity can be increased and a most reliable firearm can be provided.
    Figure 12 is a flowchart showing a method for making a firearm 700 with gas tube 705 according to an embodiment.
    The method may comprise cutting a 1/4 OD x 0.065 piece of wall, stainless steel tubing, for example, to a length - desired as shown in block 1101. For example, the tubing can be cut to a length of approximately 9,668 inches (245.6 millimeters). The pipe can be cut with a pipe cutting machine or saw, for example.
    The method may additionally comprise forming 707 threads in the cut pipe, as indicated in block 1102. For example, 1 / 4-32 threads can be formed in a pipe section with a diameter of approximately 0.250 inches (6.35 millimeters). 707 threads can be formed with a lathe or a die, for example.
    The method may further comprise forming a first fold 711 in the pipeline, as indicated in block 1103. A second fold 712 can be formed in the pipeline, as indicated in block 1104, to define gas pipe 705. The first fold 711 and the second fold 712 can be formed consecutively or simultaneously.
    The first fold 711 and the second fold 712 can be formed using a frame, template, or - pipe fold, for example.
    Gas tube 705 can be installed on a firearm 700 as indicated in block 1105. For example, gas tube 705 can be installed on a type of firearm M16 or an M4 700. The flange 725 can be formed at the rear end of the tube 705 to facilitate a desired fit on a gas block interface of the firearm 700. The flange 725 can be formed at any desired point in the manufacturing process.
    For example, bead 725 can be formed either before or after threads 707 are formed.
    Referring again to figure 9, gas tube 705 may comprise a gas tube retaining hole 751 which is used to pin (attach) the tube to the front sight block 4501. According to one embodiment, the length, dimension M, from gas pipe 705 from the center of the gas pipe retaining hole 751 to the rear end of gas pipe 705 and / or the diameter of the rear end, dimension N, of flange 725 can be approximately the same as for a modern 705 gas tube for an MI16 and / or M4. For example, the M dimension can be approximately 9,600 inches (243.8 millimeters) for an M4 and can be approximately 14.98 inches (380.5 millimeters) for an M16. For example, the dimension N can be approximately 0.180 inches (4.572 millimeters). Thus, in one or more embodiments, the 705 gas pipe can easily replace the modern gas pipe of an M16 and / or M4. According to an embodiment, the length, dimension M, and / or the diameter of the rear end, dimension N, of the flange 725 may be less than for a modern gas pipe 705 for an M16 and / or M4. For example, the M dimension may be less than 9,570 inches (243.0 millimeters) for an M4 and may be less than 14.95 inches (379.73 mm) for an MI16. For example, dimension N may be less than 0.1792 inches (4,551 millimeters) in diameter.
    Thus, the 705 gas tube can be approximately 0.100 inch (2.54 millimeters) smaller and can have an outer diameter of approximately 0.001 inch (0.254 millimeter) less at the rear end, that is, the flange 725, compared to a tube standard gas gun 705 for the same firearm 700. One or more modes can fit the key of the 752 holder of an M16 and / or M4e can easily replace modern 705 gas tubes. The shortest length, dimension M, and the shortest outer diameter, dimension N, can better accommodate thermal expansion, such as that which can be caused by using larger capacity chambers.
    Thus, the gas pipe 705 may have even greater thermal resistance.
    According to one embodiment, the outside diameter, dimension Q, of a portion of the gas pipe 705 at its rear end may be approximately 0.171 inches (4.343 millimeters). The diameter, dimension P, of the 705 gas pipe can be 0.186 inches (4.724 millimeters).
    The dimensions of the 705 gas tube, as well as its configuration, including any folds in it, can be any necessary to adapt to a particular firearm. An amount greater than or less than two folds can be used. Thus, the gas pipe 705 can have any desired shape and configuration.
    One or more modalities may provide a replacement for modern 705 gas tubes. Such modalities are less prone to overheating and less prone to malfunction because of heat-induced weakness and / or heat-induced thermal expansion, particularly during sustained fully automatic firing. of the firearm 700. Thus, the firearm 700 can cycle and fire more evenly and can be substantially more reliable.
    One or more embodiments may provide a replacement for modern 705 gas tubes that can withstand the heat of the shot at least as well as other components of the firearm 700. Thus, a failure or problem with the gas tube will be substantially less likely to be the cause of a malfunction of the 700 gun.
    An often overlooked problem with gas-operated firearms is erosion of the gas orifice. Erosion of the gas orifice makes the gas orifice larger, which allows more gas to be used and - thus gradually speeds up the firing cycle. Acceleration of triggering can cause feed jams, extraction failures, and imperfect triggering of support backing. It can also increase wear on the firearm and reduce accuracy when using the firearm.
    The M4 carbine has more problem with gas hole erosion than the M16 rifle, even though both of these firearms use the same bolt support group. The location of the M4 gas orifice is closest to the chamber, where erosion of the gas orifice is most aggressive. Due to the erosion of the gas orifice, the M4 release cam can start unlocking very early in the firing cycle and thus can cause a bolt with standard locking ears to break in the ears or hole in the cam pin. This typically does not occur on the M16 rifle and typically does not occur on new M4s. This generally only occurs in M4s that have been fired enough to substantially corrode the gas orifice. In addition to reliability problems, the high rate resulting from firing makes the revolver less controllable in automatic use, consumes ammunition, and intensifies heating problems.
    Modern MI6 / M4 firearms have a 705 gas tube with a 706 plug (figure 40) at the front end of the 705 gas tube.
    However, the cap 706 of a modern MI6 / M4 firearm does not substantially restrict the flow of gas. Modern M16 / M4 firearms rely on the 1003 gas orifice formed in the barrel to perform a gas measurement function. Gas orifice 1003 is subject to erosion, as discussed here, and thus has substantial disadvantages with respect to this measurement function.
    More particularly, the M1I6 and M4 use the gas orifice diameter 1003 as the means to control the amount of gas flow. However, the front corner of the intersection of gas orifice 1003 with the bore of the pipe is worn away from its original sharp corner in a triangle widened by the friction of each passing bullet and the bombardment of propellant grains. This erosion of the gas orifice 1003 increases its size and thus undesirably allows the flow of gas through it to increase over time. As the gas flow increases, the firing cycle speeds up, undesirably resulting in power jams, extraction failures and / or backing of the support. Imperfect shots start and get worse over time until the gun is devoid of excessively worn and / or broken parts.
    As shown in figure 10B, a gas measurement plug 1001 can be installed at the front end of gas tube 705 to reduce the undesirable effects of gas hole erosion. The gas measuring plug 1001 can have a gas measuring hole 1002 through which the gas in the pipe must flow before entering the gas pipe 705. According to one embodiment, the gas measuring hole 1002 is outside do - range of bullet friction and impact of propellant grains. The gas measuring plug 1001 can be made of a heat resistant material, so that it remains substantially unchanged by any amount of firing.
    According to one embodiment, the gas measurement hole 1002 is always smaller, for example, it has a smaller than diameter, than the gas hole 1003 (in such a way that the gas measurement hole 1002 always plays a role measurement system). Thus, although the gas orifice 1003 continues to corrode so that the gas flow reaching the gas measurement hole 1002 continues to increase the pressure, the gas measurement hole 1002 measures the gas and thus mitigates the undesirable effects of erosion of the gas. gas orifice in order to extend the life of the turret.
    As discussed here, the M16 service rifle and M4 carbine have a variety of reliability drawbacks. Undesirable back and forth of the bolt holder 702 is such an inconvenience.
    - Insufficient permanence and early release of bolt 100 are another drawback. Methods and systems disclosed here can be used in combination with each other to reduce inconveniences of the M16 / M4. For example, a drop in the replacement kit can be provided to address this and other drawbacks.
    Figures 13 and 14 show a bolt holder 702 with a longer permanence, double cut cam 1301 (figure 33B) and an anti-recoil assembly 1305 according to an embodiment. The double cut cam 1301 is particularly suitable when applied to the M4 because of the insufficient permanence of the M4. To prevent the bolts from breaking, the double cut cam 1301 can have a 0.062 longer stay compared to the standard M4 cam. Thus, bolt 100 can be delayed substantially before unlocking cam surface 3301 (Fig. 33B) starts to rotate bolt 100 to its unlocked position. This increased - permanence at least partially compensates for the time differences between the start of unlocking the M16 and the early start of the M4 because of its location of the back gas hole, as discussed here. The force on the extended bolt lock ears 3601 (figure 1) that would cause the extended bolt lock ears 3601 to connect is thus reduced in the same resistance as the M16 rifle, so that the cause of broken bolts is substantially eliminated. A single cut cam of the same new length with a 0.062 longer stay would have the same sync advantage, but double cut has two additional advantages. The propeller portion 3102 (figure —33B) of the cam has a larger interstice for dust and dirt. Although the surface of the unlocking cam 3301 remains 0.062 longer, the location of the cam pin and the bolt head on the locking side has the same starting point as the standard cam, so that the bolt head overlaps beyond the locking device. keep the bolt open in the same amount, giving the opening mechanism enough time to lift into position.
    According to one modality, the adverse effects of gas hole erosion and a higher firing rate (excessive cycle speed) can be substantially mitigated by three compatible, but separate, resources. First, a gas measuring plug 1001 can be installed at the end of the gas pipe 705 and the gas measuring plug 1001 can have a gas measuring hole 1002 through which the gas must flow.
    Second, undesirable recoil of the bolt support 702 can be substantially mitigated. It is not surprising that erosion of the gas orifice accelerates the firearm cycle, as the bolt group (comprising bolt 100 and the like) is thrown back more vigorously. However, it is also important to realize that the forward cycle of the bolt group also accelerates undesirably. “Faster movement forward is caused by the recoil of the bolt holder 702 as the stop 3503 (figure 35) and the bolt holder 702 impact the rear wall 3577 of the firearm 700. The stop 3503 does not recoil, but the bolt support 702 recedes. If the recoil of the bolt holder 702 to the rear can be eliminated, then approximately half of the shot data gain can desirably be eliminated. For example, consider that the cyclic firing rate for a new M4 is 800 rounds per minute and that the firearm has fired enough ammunition to erode the gas orifice sufficiently to accelerate the cyclical rate to 1,000 rounds per minute. This represents an increase of 200 rounds per minute in the cyclical rate. If this increase were cut in half, the gain would be only 100 shots per minute. Thus, the firearm would have a cyclical rate of 900 rounds per minute, instead of 1000 rounds per minute, and the life of the firearm would be substantially extended. When the bolt group starts to move slowly forward, it starts to push the upper cartridge in the chamber forward, so that the upper cartridge enters the feed chute at a low speed and is gently lifted by the cam action towards the opening the camera. On the contrary, if the bolt group recedes forward at a high speed, then the tip of the bullet collides on the feed ramp (which is 7º higher in the M4 than in the M16) at high speed. The bullet tends to retreat higher as the cyclical rate increases. When the cyclical rate increases sufficiently, the bullet will lose the opening of the chamber and jam the gun 700. Although this normally occurs with 30-shot cameras - modern, high-capacity cameras provided by SureFire, LLC of Fountain Valley, California are designed to reliably feed a very wide range of cyclical rates. Referring to figures 13-33A, a rate reducer and anti-recoil assembly in combination, referred to here as anti-recoil assembly 1305, can be mounted on the rear tubular section 1350 which is common to both M16 and M4 ferrule support 702 according to an embodiment. The only modification that needs to be made to the ferrule holder 702 is a vertical cut or slit 1352 formed through the left side wall of the ferrule holder 702 as shown in figure 18.
    As shown in figures 15-17, the anti-recoil assembly 1305 can comprise a steel cylinder or anti-recoil weight 1400 with a first cavity 1511 and second cavity 1512 formed therein. A first spring 1521 can be arranged in the first cavity 1511 over a first plunger 1531 and a second spring 1522 can be arranged in the - second cavity 1512 over a second plunger 1532. The first plunger 1531 and the second plunger 1532 can be substantially hollow. A spring pin 1355 can interconnect the first plunger 1531 and the second plunger 1532 and can pass through an opening 1862 on an anvil 1351.
    The anti-recoil weight 1400 can be free to slide inside the bolt holder 702 and can be centrally arranged by the first spring 1521 and the second spring 1522, which can rest on the anvil 1351. The anvil 1351 can be fixed with respect to the support of the bolt 702. The anvil 1351 can be received into the slot 1352 formed in the bolt holder 702. The first cavity 1511 and the second cavity 1512 can have a first locking shoulder 1541 and a second locking shoulder 1542 that prevent the first plunger 1531 and second plunger 1532 move beyond their centering positions, so that when the inertia moves the anti-recoil weight 1400 past the center, then a plunger 1531, 1532 compresses its associated spring 1521, 1522 in order to provide a force that tends to return the anti-kickback weight 1400 to the center while the other piston 1532, 1531 and spring 1522, 1521 are prevented from acting on the anti-kickback weight 1400. As shown in figure 15, the anti-kickback weight 1400 is in a zero or no impact position.
    That is, the position of the anti-recoil weight 1400 before firing the firearm 700 and after the firearm 700 has completed a firing cycle.
    As shown in figure 16, the anti-kickback weight 1400 is in a backward impact.
    That is, the position of the anti-recoil weight 1400 after firing the firearm 700 once the bolt holder 702 has stopped moving backwards enough to make the anti-recoil weight 1400 make contact with the anvil 1351 The anvil 1351 moved backwards with the bolt holder 702 to impact.
    As shown in figure 17, the anti-kickback weight 1400 is in a forward impact.
    That is, the position of the anti-recoil weight 1400 after firing the firearm 700 since the bolt holder 702 has stopped moving backwards to make the anti-recoil weight 1400 make contact with the anvil 1351 again. on the opposite side of the anvil 1351 with respect to that shown in figure 16. The anvil 1351 moved forward with the - ferrule support 702 to cause the impact.
    As shown in figure 18, a central cavity 1801 can be formed between the two cavities 1511 and 1512 of the anti-kickback weight.
    To the central cavity 1801 you can define a continuous passage between the two cavities 1501 and 1502. The anvil 1351 is arranged inside the central cavity
    1801. Anvil 1351 moves into central cavity 1801 as bolt holder 702 moves back and forth.
    The two pistons 1531 and 1532 can extend through corresponding openings 1821 and 1822 into the central cavity 1801. The anti-recoil assembly 1305 can be secured within the ferrule holder 702 by inserting the anti-recoil assembly 1305 in the section tube 1350 of the ferrule holder 702, then placing the anvil 1351 into the slot 1352 in the ferrule holder 702 and into the central cavity 1801, and then inserting the spring pin 1355 through the hollow pistons 1531, 1532 and through the hole 1862 nabigorna 1351. The anti-recoil weight 1400 can slide back and forth within the tubular portion 1350 of the ferrule support 702. The springs 1521 and 1522 may tend to center the anti-recoil weight 1400. The dimensions of the central cavity 1801 may allow that the anti-recoil weight 1400 moves back and forth approximately 0.10 inch (2.54 millimeters), for example, before the anti-recoil weight 1400 impacts the anvil 1351. This movement is opposed in any direction by the force of each spring 1521, 1522 and the fact that each plunger 1531, 1532 has a limiting or limiting blocking of the displacement limit 1541 (figure 19) formed therein.
    Thus, when inertia drives the anti-recoil weight 1400 forward to collide on the anvil 1351, then only the rear spring 1522 is compressed (as shown in figure 17), while the front spring 1521 and plunger 1531 move out of the anvil 1351 , and the opposite occurs when the weight 1400 moves backwards (as shown in figure 16). In this way, springs 1521 and 1522 are preloaded and predisposed to maintain the anti-recoil weight 1400 in the intermediate position, for example, approximately centered (as shown in figure 15) within their travel limits.
    When the bolt holder 702 impacts forward and tends to recede backwards, the anti-recoil weight 1400 impacts forward again (as shown in figure 17) and vice versa (as shown in figure 16). Thus, the anti-kickback weight 1400 partially defines an anti-kickback device in both directions, not just in the forward direction. Since the 1305 anti-recoil assembly attenuates backward recoil, it is also a rate reducer (tends to reduce the cyclic rate of a firearm). According to one or more embodiments, the anti-recoil assembly 1305 can be a semi-permanent installation. That is, the anti-recoil assembly 1305 can be removed by activating the spring pin 1355 for the front plunger 1532 or the anti-recoil assembly 1305 can remain in place since the - standard disassembly of the striker, cam pin and bolt can performed with the device installed.
    Figures 19-23 show additional details regarding the construction of the anti-recoil assembly 1305. Anvil 1351 is removed from figures 19-22 for clarity. The anvil 1351 is shown in figure 23 positioned for insertion in the slot 1352 formed in the ferrule support
    702. The anvil 1351 both maintains the desired position of the anti-recoil weight 1400 inside the ferrule holder 702 and provides a stop to define the limits of movement of the anti-recoil weight 1400. The anti-recoil weight 1400 strikes the anvil 1351 already that the anti-kickback weight 1400 works to - reduce undesirable kickback of the bolt holder 702.
    Figure 24 shows a cross section of the modified ferrule support 702. The cross section is made where the slit 1352 is formed to receive the anvil 1351.
    Figures 25 and figures 31 A-31C show anvil 1351.
    The anvil 1351 can be modeled in the general crescent with a hole 1862 close to its middle. The anvil may have a curved outer surface 1362 that can generally conform to the curvature of the ferrule holder 702 on which the anvil 1351 is arranged. Anvil 1351 can have any desired shape. Hole 1862 receives spring pin 1355.
    Figure 26 shows an impact area 1370 where the anti-recoil weight 1400 strikes the bolt holder 702 during cycling of the firearm 700. A support surface 1371 of the bolt holder 702 where the anvil makes contact with the bolt holder 702 when the anvil is installed on the bolt holder is also shown.
    Figure 27 shows a cross section of ferrule support 1350 with anvil 1351 installed in slot 1352. Spring pin 1355 is installed on pistons 1531 and 1532. Figures 28A and 28B show the anti-recoil assembly 1305 in cross section.
    Anti-recoil weight 1400, plungers 1531 and 1532, springs 1521 and 1522, anvil 1351, and spring pin 1355 are installed in bolt holder 702. Figures 29A-29C show cavities 1511 and 1512 of the weight anti-recoil 1400 where the plungers 1531 and 1532 are arranged.
    Plungers 1531 and 1532 are removed for clarity.
    Figures 30A-30D show a plunger 1531, 1532. Plunger 1531, 1532 comprises a generally cylindrical spring axis or guide 1535 on which spring 1521, 1522 is compressively arranged and a shoulder 1536 on which spring 1531, 1532 supports itself.
    A limiting stop 1541 partially defines the displacement limit of the anti-recoil weight 1400, as discussed here.
    Figure 31A-31C shows anvil 1351. Figure 31B is a side view of anvil 1351. Figure 31C shows a cross section of the anvil through hole 1862. Figures 32A-32F are various views showing a - modification of the holder bolt 702 according to an embodiment.
    Slot 1352 can be cut in a standard ferrule holder 702 to receive anvil 1351. Slit 1352 can be machined in ferrule holder 702, for example.
    The anti-recoil assembly 1305 can thus be easily added to a standard ferrule holder 702.
    Figures 33A-33B show a long-lasting double-cut cam 1301 according to an embodiment. Exemplary dimensions for the 1301 double cut cam are provided. Double cutting of cam 1301 delays the release of bolt 100 and provides other advantages, as discussed here.
    The longer permanence of the double cut cam 1301 allows the chamber pressure to drop more than is permitted by the single cut cam of a standard M4 carbine, in order to better ensure that the pressure is low enough to safely disengage and the 3601 extended locking ears are reliable. The anti-recoil weight makes the 700 firearm more controllable and reduces the cycle rate compared to a standard M16 / M4.
    Double cut of the 1301 cam extends the 3530 bolt head (figure 36) approximately 0.062 inches (1.575 millimeters) forward. This extended amount increases 0.130 inches (3.302 millimeters) in additional length on the 3601 extended hasp lock ears for an additional total length of approximately 0.192 inches (4.877 millimeters) from the front of the 702 hasp holder compared to standard M16 / MA4. In the standard M16 / M4 firearm 700 (figure 35), such a double cut of the cam 1301 and such extended bolt lock ears 3601 eliminates the nominal over-displacement of 0.188 of the bolt head 3530 in addition to the bolt tongue 3632 and thus blocks the proper functioning of the bolt on the 3632 bolt (figure 35).
    A group of bolt 3650 may include bolt 3610, bolt holder 702, and bracket key 752, among other items. To facilitate the proper functioning of the 3632 bolt tongue and improve this without undesirably mitigating the benefits of the more robust 3601 extended bolt lock ears, as well as the delayed unlocking that results from the 3601 extended bolt lock ears and the cutting cam double 1301, a smaller stop 3503 and modified support key 752 allow the 3650 bolt group to move an additional 0.360 inches (9.144 millimeters) backwards.
    With particular reference to figure 33B, examples of - dimensions are provided for the double cut cam 1301. These dimensions provided the greatest permanence.
    Other dimensions can similarly provide a longer stay.
    The propeller portion 3102 of the double-cut cam 1301 can provide a larger interstice to better accommodate soot formation, for example, dust and dirt.
    The unlocking cam surface 3301 can be 0.062 longer in residence.
    The location of the cam pin and bolt head (not shown) on the locking side can have the same starting location as the standard cam so that the bolt head overlaps in addition to the device to keep the bolt open in the same amount giving the device to keep the bolt open long enough to lift into position.
    Referring now to figures 34A-34P, the support key 752 may have a reduced profile that avoids interference, for example, by the impact of the support key 752 with a smaller rear band of the receiver 3640 (figure 36). The reduced profile of the bracket key 752 may be required by the larger extended hasp ears 3601. The bracket key 752 may have a single bolt hole 3421, as opposed to a modern bracket key that has two bolt holes.
    It has been observed that the use of a single mounting bolt is - sufficient to securely attach the bracket bracket 752 to the bracket 702 and the use of a single mounting bolt facilitates increasing the displacement of the bracket bracket 702 because of the use of the extended extended lock latch ears 3601, as discussed here.
    The use of a single mounting bolt facilitates the additional interstice to define the low profile 3422 to prevent the rear key portion of bracket 752 from making contact with the rear band of receiver 3640 when the firearm 700 cycles. In addition, the bracket key 752 can be mounted on a deeper cut groove of the ferrule bracket 702. The use of a smaller bracket key 0.500 inch (12.7 mm) 752, a reduced stop 3503 (figure 36) can increase the displacement of the bolt holder 702 is permissible by approximately 13% and can reduce the firing rate of the firearm 700 to about 80% of what is otherwise. Except for the key design 752, the only change in bracket 702 may be that two number 8 screw holes are replaced by a single 10-32 screw hole.
    While this in itself does not necessarily reduce wear and tear on parts, it can increase total self-control and the likelihood of collision, save ammunition and reduce heat buildup. Thus, operation and reliability can be improved. The use of a support key 752 like this can be of conformity and work normally with the reduced stop 3503 (figure 36). It is therefore possible to create the option of using a reduced stop and spring stack for a reduced firing rate.
    The support key 752 is shown during several steps of its manufacture. More particularly, figures 34A-34C show a block shape of the support key 752. Figures 34D-34G show the key of the support 752 after a drilling and widening process. Figures 34H-34J show the key of support 752 after turning the tongue. Figures 34K-34N show the support key 752 after the formation cut. Figures 340-34P show the profile of the finished support key 752.
    According to one embodiment, more robust extended bolt lock ears 3601 can be formed on the bolt and more robust extended barrel lock ears 4410 can be formed on the length of the barrel 3612, as discussed here. The use of more robust 3601 extended hasp lock ears and more robust 4410 extended barrel lock ears mitigates its failure. Such failure of the extended bolt lock ears 3601 and the extended barrel lock ears 4410 can result in damage to the firearm 700, as well as possible loss of life, particularly in police use and field battle operations. The maximum displacement limit for the bolt group is reached approximately 0.156 inches (0.39 centimeters) before the lower front chamfer of the bolt holder 702 over-relocates the notch 3632 in semiautomatic dogs. The approximate 2.85 inch (72.39 mm) length of the 3503 stop prevents this over-displacement.
    A standard over-displacement of approximately 0.188 inches (0.48 cm) from the 3530 bolt head to the 3632 bolt tongue gives sufficient time to operate the 3632 bolt tongue unless the cyclic rate of the 700 gun increases. At the cyclical rate it can increase because of erosion of the gas orifice or the use of a sound suppressor. According to one modality, the over-displacement is increased to approximately 0.355 inches (9.017 millimeters) for greater reliability.
    The additional displacement of approximately 0.360 inches (0.9144 centimeters) of the bolt group reduces the firing rate (cyclic rate) and increases the reliability of the 700 firearm. The anti-recoil assembly, gas measuring tube, and improved gas tube discussed here also increase the reliability of the 700 gun.
    Figure 35 is a cross-sectional side view of a portion of a standard 7000 M16 / M4 5.56 mm firearm. The ears of the locking bolt 3501, the support key 752, the stop 3503, the cam 1301, the ramps 3505 , bolt 100, barrel extension 3612, and bolt holder 702 are (modern) standards. That is, the firearm 700 was not modified according to one modality. The bracket key 752 has two 3571 screws that provide attachment of the bracket key 752 to the ferrule bracket 702. Figure 35 is provided to further facilitate the contrast with respect to the modalities described here. Fig. 36 is a cross-sectional side view of a portion of a 5.56 mm and 6.8 mm 700 M16 / M4 firearm according to an embodiment. Figure 36 shows the use of the 3503 stop which is 0.360 inches (9.144 mm) smaller than the standard, the use of the support key 752 which is mounted by means of a single screw 3671 in a support channel cut deeper to facilitate use of the anti-recoil set
    1305.
    The bolt holders 702 in both figure 35 and figure 36 are shown both in the most forward (locked) and the most backward position. These are the two travel ends for the ferrule support 702.
    The extended bolt lock ears 3601, bracket key 752, stop 3503, cam 1301, and ramps 3505 have been modified to provide operation of the more robust firearm 700. More particularly, a bolt 3610 with the bolt lock ears extended more robust 3601 and a 3512 barrel extension with the more robust 4410 extended barrel lock ears. For example, the 3601 extended bolt lock ears can be increased in length to provide at least approximately 1.3 times (as approximately 1.35 times) the shear area, compared to - those of the standard M16 / M4 firearm (figure 35).
    Figure 37 is an enlarged cross-sectional side view showing the unmodified locking bolt ears or standard 3506 of the 5.56 mm MI6 / M4 firearm in the upper portion of the figure and showing the more robust 3601 extended locking bolt ears. firearm M16 / M4 5.56 mm and 6.8 mm according to a modality, in the lower part of the figure. The standard 3501 locking bolt ears and the more robust 3601 extended bolt locking ears are shown engaged with the standard 3511 barrel extension locking ears and the more robust 4410 complementary extended barrel locking ears, respectively.
    As shown in figures 37A and 37B, a flange 3613 can be formed over the extension of the pipe 3612 in such a way that the flange 3613 is approximately 0.130 inches from a front end of the pipe extension 3612. Thus, instead of the flange 3613 of one embodiment being at the front end of the pipe extension 3612, such as the 3513 flange of a standard M16, the flange 3613 lies behind the front end of the pipe extension 3612 an amount approximately equal to the added length of the 3601 bolt ears and the pipe extension ears 4410. In this way, the threaded length of the pipe is maintained and the resistance of the pipe is not compromised. This is done without requiring any changes to the body of the receiver, the barrel nut, the front end of the firearm, or the position of the gas block.
    Figure 38 shows the standard 3511 feed chutes 3505 and barrel lock ears 356 of the standard MI6 / M4 5.56 mm firearm
    700. The 3505 feed chutes are formed in the length of the 3512 barrel. The steeper and narrower feed chutes 3505 decrease the reliability of the firearm 700, allowing the bullets to recede high and occasionally leave the chamber, thus causing a jam. feed.
    Fig. 39 is an end view showing feed chutes 3605 and extended barrel lock ears 4410 for a 5.56 mm and 6.8 mm 700 MI6 / M4 firearm according to an embodiment. The 3605 feeding ramps are formed in the extension of the barrel 3612. The sturdier extended barrel lock ears 4410 and the wider and longer (less pronounced) 3605 feeding ramps facilitate more reliable operation of the 700 gun. The ramps Wider and longer feeds 3505 provide a better feed angle for the 700 gun and are thus less likely to cause jamming.
    Examples of parameters used to define the longest and longest feeding ramps 3505 are shown.
    Referring now to figures 40-44, a gas orifice positioned behind 1003 of a modern M16 / M4 type of firearm 700 can move forward, away from the receiver, in order to increase the time between deflagrations. of a cartridge and cycling the bolt of the firearm and in such a way as to reduce the pressure used to cycle the firearm 700. At the cyclical rate of the firearm 700 can be reduced and tension in the components of the firearm 700 can be reduced .
    In this way, the reliability of the armade Fogo 700 can be substantially increased, as discussed here.
    Figures 40 and 41 show the gas port positioned behind 1003 as positioned on a modern M4 firearm.
    Fig. 41 additionally shows the use of the gas measurement buffer 1001 according to an embodiment.
    Figures 42-44 show the gas port 1003 - moved forward as well as showing the use of the gas measurement plug 1001 according to an embodiment.
    With particular reference to figure 40, the front sight block (also known as a gas block or forged part) 4501 and gas pipe 705 of a modern firearm 700, i.e. an M4 carbine, - are shown.
    Firearms of the M16 / M4 family are constructed in such a way that the gas orifice positioned behind 1003 of the barrel 4507 is located close to the rear band 4504 of the sight block 4501. Gas from the barrel 4507 passes through the gas orifice positioned for behind 1003 and through a gas passage 4503 in the rear band 4504 to reach the gas pipe
    705. Gas orifice 1003 performs the function of measuring gas and is subject to wear, thus causing the problems discussed here.
    With particular reference to figure 41, the gas port 1003 is again located close to the rear band 4504 of the sight block 4501. The gas measurement plug 1001 has been added to the gas tube 705 to regulate the gas flow from the gas port. 1003 for gas cylinder 701 (figure 7), to compensate for wear of gas orifice 1003, as discussed here.
    Thus, the gas measurement plug 1001 can be installed on a firearm 700 that has gas orifice 1003 in the standard location, that is, close to the rear band 4504. A thick-walled gas pipe 705 can additionally be used according to a modality.
    The gas measurement plug 1001 can be arranged within the front sight block 4501, as well as in the portion of the thick-walled gas tube 705 that is received within the front sight block 4501. The gas measurement plug 1001 can be installed anywhere along the gas path from gas orifice 1003 to gas cylinder 701, provided that the gas measurement plug 1001 is installed far enough away from gas orifice 1003 so as not to be substantially subject to wear and tear caused by hot gases and - burning propellants.
    With particular reference to figures 42-44, a gas passage 4702 can be formed in the front band 4505 of the sight block 4501. Moving the gas passage 4702 to the front band 4505 allows the gas orifice 1003 to move forward in pipe 4507, thus delaying the time in which the gas acts on piston 101 (figure 1) and decreasing the gas pressure.
    In this way, the cyclic rate of the firearm 700 can be reduced and undesirable forces acting on the components of the firearm 700 can be reduced.
    Gas orifice 1003 can be relocated in this position further forward without moving or changing the shape of the front sight block 4501 or the rear bands 4504 and front 4505, which surround the barrel 4507 to attach the front sight block 4501 in pipe 4507. Gas passage 4702 is perforated in the front band 4505, instead of in the rear band 4504. The interstice 4810 can be provided in the lower portion of the front band 4505, both before such drilling and by the drilling process itself. to facilitate such drilling.
    The rear band 4504 and the front band 4505 can be formed integrally with the front sight block 4501 (as a single forged or cast piece, for example). Alternatively, the rear band 4504 and the front band 4505 can be formed separately with respect to the front sight block 4501. The gas orifice 1003 (figure 40) of a modern firearm was originally located in the rear band 4504 when the front sight 4501 was designed for the longer barrel of the MI16 rifle. Then, the same configuration of the front sight block 4501 and the gas hole positioned behind 1003 was used for the shortest 5-1 / 2 inch (139.9 millimeter) carbine barrel. On the carbine, the front sight block 4501 moved back 5-1 / 2 inches (139.9 mm) (relative to the rifle) to maintain the standard distance from the bayonet ear to the mouth.
    The gas port positioned backward 1003 also moved backward 5-1 / 2 inches (139.9 millimeters). The distance from the start of the bullet (ammunition) to the gas orifice determines the pressure available, and the distance from the gas orifice to the mouth - determines how long the pressure is available, so the ratio between the two distances determines the impulse ( force multiplied by time) from the gas system to the revolver.
    The ratio for a bullet travel length of 18-1 / 2 inches (469.9 mm) from the rifle barrel is 63/37 (63% from the start of the bullet to the gas orifice and 37% from the gas orifice to the mouth). The ratio for the 13-inch (330.2 mm) bullet travel length of the carbine barrel is 47/53. Since the reason used for the rifle barrel has proven to be reliable for decades of service, this reliability suggests that the distance from the start of the bullet to the gas orifice used in the rifle barrel is two inches less than necessary to maintain same reason as in the rifle. This therefore indicates that the gas orifice is much closer to the firing chamber (bullet start position) in modern M16 / M4 firearms than it needs to be. Placing the gas orifice 1003 closer to the chamber causes the gas orifice 1003 (figure 46) to be subjected to greater pressure and temperature than necessary. This is because the closer the gas port 1003 is to the chamber, the greater the temperature and pressure to which the gas port 1003 is exposed. Higher temperatures and pressures undesirably cause more aggressive erosion of the gas orifice.
    Additionally, as the carbine gas system begins to release the bolt while there is greater pressure in the chamber (compared to the rifle), the cam hole bolt pin and standard 3501 lock bolt ears are undesirably subjected to more tension, which can cause them to wear out prematurely, bond and finally fail.
    Without changing the external dimensions of the 4501 front sight block (these dimensions must remain the same to accommodate the bayonet, two-foot support, grenade launched from the barrel and separate grenade launcher) a total correction of two inches (5.08 cm) does not it's viable. However, it is feasible to reposition the 1.23 inch (31.242 millimeter) gas port further forward, as discussed here, thus obtaining substantial benefit. Thus, by moving the gas hole in the barrel and the gas block through the 1.23 inch (31.242 mm) rear band forward to the front band 4505, problems associated with modern firearms can be substantially mitigated .
    A hole 4712 can be formed in the front sight block 4501 to receive gas tube 705. Hole 4712 can extend completely through the front sight block 4501. As best shown in figures 43 and 44, the gas 1001 can comprise a gas measurement hole or hole 1002 and an inlet 4804. Inlet 4804 and / or gas measurement hole 1002 are sized and configured to perform the desired gas measurement function. That is, both inlet 4804, gas measurement hole 1002, and both are configured to allow a desired amount of - gas to flow from gas orifice 1003 to gas pipe 705. Inlet 4804 and / or measurement hole gas 1002 can define a fixed calibrated orifice to determine the amount of gas flow through the gas metering plug
    1001. Thus, the amount of gas used to cycle the firearm can be better controlled, for example, it can be fine-tuned.
    An opening 4803 can be formed in the gas pipe 4791 to facilitate the flow of gas from the gas passage 4702 to the gas measuring plug 1001. A hole 4802 can be provided through the gas measuring plug 1001 and / or the pipe 705 gas valve to facilitate attachment, for example, pinning, of the gas pipe 705 and / or the gas measurement plug 1001 to the front sight block 4501.
    Figure 45 shows the anti-recoil weight 1400 with a chamfer 5101 formed thereon to provide an interstice for the firearm dog 700 according to an embodiment. According to other modalities, the chamfer 5101 can be omitted, such as when the anti-recoil weight 1400 does not interfere - the dog's movement.
    Fig. 46 shows a cam pin 5200 with a chamfer 5201 formed thereon to provide interstice for cam 1301 according to an embodiment. Chamfer 5201 can extend around the periphery of the pin end of cam 5200 which extends inside cam 1301. Chamfer 5201 can be omitted in modalities where tolerances allow. One or more modes can be used on several different gas operated rifles, carbines, pistols and the like. Although modalities are discussed here with respect to MI6 / M4 and HK416, such - discussion is for illustration only, not limitation. Various modes can be used with various gas-operated firearms, including rifles, carbines and pistols.
    One or more of the modalities described here can be used to modify standard MI6 / M4 firearms. The modalities can - alleviate problems with M16 / M4 firearms and / or can improve the performance of MI6 / M4 firearms. The modalities tend to require little change for the production of revolvers or their production tools, so that an MI6 / M4 manufacturer can, with relatively small cost and effort, convert the fifty-five-year design of the 155 Ml6 into a product of higher performance. This higher-performance product can easily fire SureFire's high-capacity 60- and 100-shot cameras. These high-capacity chambers provide one to three times the firepower of today's standard twenty-shot chambers. Thus, such high capacity chambers can be used without burning the gas pipe, piston rings, or gas orifice of the pipe and without increasing the cycle rate beyond a point where the chamber can reliably feed. Such modalities can be provided with small, cheap and easy modifications in the production parts of the standard M16 and M4. Longer and more robust ears are provided so that the firearm can fire a more powerful cartridge, such as the 6.8 mm cartridge. The 6.8 mm cartridge applies 1.3 times the force to the ears compared to the 5.56 cartridge for which the firearm was originally designed to use. The largest ear surface is provided by increasing the length of the bolt ears and the barrel extension ears 1.35 times. This provides a larger shear area and larger feed chutes, as discussed here.
    The most robust locking ears are provided without moving the muzzle forward. Moving the muzzle forward - undesirable would either reduce the threaded length of the muzzle or reduce the resistance of the muzzle attachment to the muzzle extension or would require a longer muzzle extension that would require an unwanted change in the main revolver body.
    Instead, according to a modality, the length of the internal pipe length and overall length are changed, leaving the external length of the rear face to the flange still the same. No changes to the main revolver body, barrel nut and front assembly, sight block or gas pipe are required.
    The features described here can be used individually or in any combination desired to provide a safer and more reliable firearm. One or more of these features can be used to modify an existing firearm. One or more of these resources can be used to make a new firearm.
    Comparisons are made here with the standard MI16. For such comparisons, the standard MI6 may be the M16 manufactured by FN Manufacturing LLC (FNM), PO Box 24257, Columbia, South Carolina 29224.
    Comparisons are made here with the standard M4. For such comparisons, the standard M4 may be the M4 carbine manufactured by Colt's Manufacturing Company Inc., Firearms Division PO Box 1868, Hartford, Connecticut 06144.
    The standard MI16 can be the one defined by any M16 rifle Technical Data Package (TDP) adopted by the US Military as the standard for the M16 rifle, M4 carbine, or civilian ARI5 model. The M4 standard can be that defined by a TDP of the M4 carbine adopted by the US Military as the standard when features differ from those of the M16 rifle's TDP.
    The above-described modalities illustrate, but do not limit, the invention. It should also be understood that numerous modifications and variations are possible according to the principles of the present invention. In this way, the scope of the invention is defined only by the following claims.
    A firearm may comprise: a bolt with a plurality of locking ears, the locking ears being configured to have a shear area that is at least approximately 1.3 times that of a standard MI6 / M4; a piston formed in the bolt and with a plurality of rings configured to cooperate with the piston to reduce gas leakage beyond the piston, each of the rings having a key formed in it and an interstice formed in it, in such a way that the interstice of a ring it is configured to receive at least a portion of the key from another ring; a bolt holder to which the bolt is movably attached, the bolt holder having a double cut cam, the double cut cam having a starting point in an unlocked position of the bolt which is substantially the same as that of the standard M16 cam and with an unlocking cam surface that has sufficiently increased permanence to delay the start of unlocking when the bolt holder is used on an M16 / M4 rifle or carbine; a weight movably disposed within the ferrule support, the weight being configured to prevent back and forth of the ferrule support; a bracket key attached to the bolt bracket and configured to facilitate a bolt bracket stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of the standard M16 / M4; a stop with a length that is approximately 0.360 inches (9.144 millimeters) less than a standard stop for the M16 / M4 stop; a tube configured to supply gas from a firearm barrel to the piston via the support key, the tube having a heat radiator formed in at least a portion of the tube; a gas metering plug with a gas metering hole configured to measure gas from the barrel of a firearm in the ferrule bracket of the firearm, where the gas metering hole is located away from a gas orifice in the fire gun; and a front sight block with a rear band and a front band to attach the sight block to the barrel and with a gas passage formed in the front band to facilitate gas flow from the barrel to a firearm gas pipe.
    A bolt group may comprise: a bolt with a plurality of locking ears, the locking ears being configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4; a piston formed in the bolt and with a plurality of rings configured to cooperate with the piston to reduce gas leakage beyond the piston, each of the rings having a key formed in it and an interstice formed in it, in such a way that the interstice of a ring it is configured to receive at least a portion of the key from another ring; a bolt holder to which the bolt is movably attached, the bolt holder having a double cut cam, the double cut cam having a starting point in an unlocked position of the bolt which is - substantially the same as the standard M16 cam and having an unlocking cam surface that has sufficiently increased permanence to delay the start of unlocking when the bolt holder is used on an MI6 rifle or an M4 carbine; a weight movably disposed within the ferrule support, the weight being configured to prevent backward recoil and —forward of the ferrule support; and a bracket key attached to the bolt bracket and configured to facilitate a bolt bracket stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of the standard M16 / M4. A device may comprise: a ring configured to cooperate with a piston in a gas operated firearm to reduce gas leakage beyond the piston; a key formed over the ring; and an interstice formed in the ring and configured to receive at least a portion of a key from another ring; where the key is - substantially opposite the interstice in the ring; wherein the key and the interstice are formed in such a way that a pair of rings is nestable with the key of each of the rings arranged within the interstice of each other of the rings; wherein the key is substantially rectangular in cross section; wherein the interstice is substantially rectangular in cross section; where the ring walls are substantially rectangular in cross section; wherein the ring is formed of stainless steel; wherein the ring is configured to be received at least partially within a piston groove; where the device is a firearm.
    A device may comprise: a piston for a gas operated firearm; a first ring configured to be received on the piston; a second ring configured to be received on the piston; and wherein the first ring and second ring are configured to lock with each other in such a way that the first ring and second ring rotate substantially in unison around the piston.
    One method may comprise: placing a ring with a key and an interstice on a piston of a gas operated firearm; place another ring with a key and an interstice on the piston; and wherein the key of each of the rings is arranged at least partially within the interstice of each of the other rings.
    One method may comprise: attenuating gas leakage in addition to a piston in a firearm using a plurality of rings, each ring with a key formed in it and an interstice formed in it; and wherein the interstice of one of the rings receives at least a portion of the key from another of the rings.
    A device may comprise: a tube configured to supply gas from a barrel of a firearm to a piston of the firearm; and a heat radiator extending from at least a portion of the tube; wherein the heat radiator comprises fins that form a V-notch approximately 60 degrees between opposite walls; wherein the heat radiator comprises threads. The device on which the tube has an outside diameter of 0.250 inches (6.35 millimeters); wherein the tube is formed of 347 stainless steel; wherein the tube is configured for use in a common firearm piston formed in a bolt of the firearm; wherein the tube is configured for use in a member of an MI16 / M4 family of firearms; where the tube is configured to receive gas from a barrel of a firearm that is a member of an M16 / M4 family of firearms via a front sight of the firearm and supply gas to a bolt holder from the firearm fire via a ferrule bracket key, the pipe having an outside interface diameter on the ferrule bracket key of less than 0.1792 inches (4.422 millimeters), the pipe having a length of a front sight mounting hole of it to a rear end of less than 9.57 inches (243.08 mm) —for a firearm type M4, and the tube with a length of a mounting hole in the front sight of the same to a rear end of the even less than 14.95 inches (379.73 mm) for an M16 firearm; wherein the device is a firearm; wherein the threads are a uniform standard thread shape; wherein the threads comprise helical threads.
    One method may include: cutting a pipe; form a radiator in the tube; and installing the tube in a firearm in such a way that the tube is configured to provide gas from a barrel of the firearm in a piston thereof; forming a first fold in the tube; and forming a second fold in the tube; wherein the heat radiator comprises threads; wherein the threads are in the form of a uniform standard thread; wherein the threads are formed in a portion of the tube away from the ends of the tube; where threads are not formed at the ends of the tube; wherein the tube has an outside diameter of 0.250 inches (6.35 millimeters); where the tube is formed of 347 stainless steel.
    A device may comprise a tube configured to receive gas from a barrel of a firearm that is a member of an MI6 / M4 family of firearms via a front sight of the firearm and - supply gas to a bolt holder in the firearm. firearm via a ferrule bracket key, the pipe with an outside diameter interfacing to the ferrule bracket key of less than 0.1792 inches (4.552 millimeters).
    A device may comprise a tube configured to receive gas from a firearm barrel which is a member of an M4 family of firearms via a firearm's front sight and supply gas to a firearm bolt holder. via a ferrule support key, the pipe with a length of a mounting hole in the front sight of the same to a rear end of the same less than 9.57 inches (243.08 mm).
    A device may comprise a tube configured to receive gas from a firearm barrel which is a member of an M16 family of firearms via a firearm's front sight and supply gas to a firearm bolt holder. via a ferrule bracket key, the pipe having a length of a mounting hole — drifting even to a rear end of it less than 14.95 inches (379.73 millimeters).
    One method may comprise: providing gas from a barrel of a firearm into a piston of the firearm; and wherein a heat radiator extends over at least a portion of the tube.
    A device may comprise: a gas measuring hole configured to measure gas from a firearm barrel in a firearm bolt holder; and wherein the gas measurement hole is located away from a gas orifice in the firearm; wherein the gas measurement hole is located sufficiently far from the firearm's gas orifice to be substantially unaffected by erosion; wherein the gas metering hole is located sufficiently far from the firearm's gas orifice to be substantially unaffected by erosion caused by friction from passing bullets and / or bombardment of propellant grains; where the gas measurement hole is configured in such a way that gas passes through it before entering a firearm gas tube; wherein the gas measurement hole is smaller than a gas hole in the firearm; wherein the gas measuring hole is formed in a plug in front of a gas pipe; wherein the gas measuring hole is formed of a heat resistant material; where the device is a firearm.
    One method may comprise: placing a gas measurement hole in a gas path from a firearm barrel to a firearm bolt holder; wherein the gas measurement hole is located away from a gas hole in the firearm; and where the gas measurement hole is configured to measure gas.
    One method may comprise: measuring gas from a barrel of a firearm through a gas measuring hole; supplying gas to a firearm bolt holder; and where the gas measurement hole is located away from a gas hole in the firearm.
    A device may comprise: a front sight block for a firearm; a rear band and a front band to attach the sight block to a barrel of the firearm; and a gas passage formed in the front band to facilitate gas flow from the barrel to a firearm gas tube; the device in which the gas passage is configured to substantially align with a gas orifice in the pipe and receive gas from the gas orifice; it may comprise a gas measuring plug configured to be received within the front sight block and configured to measure gas from the gas orifice; wherein the gas measuring plug comprises a fixed orifice; wherein the gas measurement plug comprises a calibrated orifice; it may comprise a gas pipe configured to match the front sight block; it can comprise a heat exchanger formed in the gas pipe; it can comprise threads formed on the gas pipe; where the front sight block is configured for common use in the M16 / M4 family of firearms; where the device is a firearm.
    One method may comprise: forming a gas passage in a front band of a block in the front sight; form a gas orifice in a pipe; and attaching the front sight block to the barrel in such a way that the gas passage is substantially aligned with respect to the gas orifice; the device may comprise installing a gas measuring cap on the front sight block; the device may comprise may comprise installing a gas measurement plug in the gas tube and installing the gas tube partially within the front sight block.
    One method may comprise: communicating gas from a gun barrel to a gun gas tube; and wherein the gas is communicated through a front band of a front sight block; the device may comprise measuring gas through a gas measuring plug.
    A device may comprise: a bolt support; a double cut cam formed on the bolt support; and where the cam has a starting point at an unlocked position of the bolt that is substantially the same as that of the standard M16 cam and has an unlocking cam surface that has sufficient permanence increase to delay the start of unlocking when the bolt is used on an M16 rifle or an M4 carbine; where the device is a firearm.
    One method may include: mounting a bolt holder on a firearm; wherein a double cut cam is formed on the bolt holder; and the double cut cam has a starting point in an unlocked position of the bolt that is substantially the same as that of the standard MI16 cam and has an unlock cam surface. which has sufficient permanence increase to delay the start of unlocking when the bolt holder is used on an M16 rifle or an M4 carbine. One method may comprise: moving a double cut cam with respect to a cam pin from an unlocked position of a bolt to a locked position of the bolt; and where the double cut cam has a starting point at the unlocked position of the bolt which is substantially the same as that of the standard M16 cam and has an unlock cam surface that has sufficient permanence increase to delay the start of unlocking when the bolt holder is used on an M16 rifle or an M4 carbine. A device may comprise: a bolt support; a weight movably disposed within the bolt support; and wherein the weight is configured to prevent back and forth of the bolt support; wherein the weight is configured to slide into the bolt holder; wherein the weight is configured to impact an anvil after the bolt holder begins to recede out of a position further in front of the bolt holder in order to inhibit recoil from the bolt holder; wherein the weight is configured to impact an anvil after the bolt support begins to recede out of a position further back from the bolt support in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after a bolt engages the bolt ears of a firearm in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after a bolt support stop makes contact with a rear wall of a firearm receiver in order to inhibit recoil of the bolt support; the device may comprise: a cavity formed within the bolt support and within which the weight slides; and at least one spring configured to generally center the weight within the cavity; the device may comprise: a cavity formed within the bolt support and within which the weight slides; two springs configured to generally center the weight within the cavity; and two pistons on which the springs are arranged; where the weight is generally cylindrical; the device may comprise: a first cavity formed within the bolt support and within which the weight slides; two springs configured to generally center the weight within the first cavity; two pistons on which the springs are arranged; a second cavity and a third cavity formed within the weight, a spring and a plunger being disposed within each of the second cavity and the third cavity; and in which the second cavity and the third cavity have locking shoulders that prevent the plunger disposed therein from moving beyond a centralized position of the plunger so that when inertia moves the weight beyond a centralized position of the weight, a piston compresses a spring to return the weight to the center while the other piston and spring are prevented from acting on the weight; the device according to claim 76, which additionally can comprise an anvil configured to contain the weight, the springs, and the - pistons within the bolt holder; wherein the weight is configured to impact the anvil during forward and backward displacement of the weight; the device may comprise a pin configured to contain the anvil at least partially within the bolt holder; where the bolt holder is configured for use on a firearm selected from the group consisting of: a member of an M16 / M4 family of firearms; a copy of a member of an M16 / M4 family of firearms; and any firearm on which the bolt holder will function; where the bolt support is modified to work on revolvers that are - driven by an operating rod and piston; where the device is a firearm.
    One method may comprise: providing a bolt support; movably arranging a weight within the bolt support; and wherein the weight is configured to prevent back and forth of the bolt support; wherein the weight is configured to slide into the bolt holder; wherein the weight is configured to impact an anvil after the bolt support begins to recede out of a position further ahead of the bolt support in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after the bolt support begins to recede out of a position further behind the bolt support in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after the bolt engages the bolt ears of a firearm in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after a stop on the bolt holder makes contact with a rear wall of a firearm receiver in order to inhibit recoil of the bolt holder; the device may comprise: forming a cavity formed within the bolt support in such a way that the weight is slidable with the cavity; and centering the weight within the cavity using at least one —spring; the device may comprise: forming a first cavity within the ferrule support such that the weight is slidable with the first cavity; center the weight inside the first cavity using two springs that are arranged on two pistons; and in which the weight comprises a second cavity and the third cavity which each have one of the pistons and one of the springs disposed therein and which have locking shoulders which prevent the piston disposed in them from moving beyond a centralized position of the piston of so that, when inertia moves the weight beyond a centralized position of the weight, one piston compresses a spring to return the weight to the center, while the other piston and spring are prevented from acting on the weight; where the weight is generally cylindrical; the device may comprise: forming a first cavity within the bolt support in such a way that the weight is slidable with the first cavity; forming a second cavity and a third cavity within the weight; center the weight inside the first cavity using two springs that are arranged on two pistons; wherein one of the springs and one of the plungers are arranged within each of the second and third cavities; and in which the second cavity and the third cavity have locking shoulders that prevent the plunger disposed therein from moving beyond a centralized position of the plunger so that when inertia moves the weight beyond a centralized position of the weight, a plunger compresses a spring to return the weight to center, while the other piston and spring are prevented from acting on the weight; the device may comprise using an anvil to maintain weight, springs, and plungers within the bolt holder; where the weight is configured to impact the anvil during forward and backward movement of the weight; the device may comprise using a pin to hold the anvil at least partially within the bolt holder; where the bolt holder is configured for use in a member of an M16 / M4 family of firearms.
    One method may comprise: firing a firearm in such a way as to cause a weight to move within a bolt holder; and wherein the weight is configured to prevent back and forth of the bolt support; wherein the weight is configured to slide into the bolt holder; wherein the weight is configured to impact an anvil after the bolt support begins to recede out of a position further ahead of the bolt support in order to inhibit bolt recoil; wherein the weight is configured to impact an anvil after the bolt holder will begin to recede out of a position further behind the ferrule holder in order to inhibit recoil of the ferrule holder; wherein the weight is configured to impact an anvil after the bolt engages the bolt ears of a firearm in order to inhibit recoil of the bolt support; wherein the weight is configured to impact an anvil after a bolt support stop makes contact with a rear wall of a firearm receiver in order to inhibit recoil of the bolt support; where: the weight slides into a cavity formed within the bolt support; and at least one spring in general centers the weight within the cavity; where: the weight slides into a cavity formed within the bolt support; two springs generally center the weight within the cavity; the two springs are arranged inside the two cavities on two pistons; and where the two cavities have locking shoulders that prevent the plunger disposed in them from moving beyond a centralized position of the plunger so that when inertia moves the weight beyond a centralized position of the weight, a plunger compresses a spring to return the weight to the center, while the other piston and the other spring are prevented from acting on the weight; where the weight is generally cylindrical; where: the weight slides into a first cavity formed within the bolt support; two springs generally center the weight within the first cavity;
    the two springs are arranged on two pistons; one of the springs and one of
    - pistons are arranged within each of a second cavity and a third cavity formed in the weight; and in which the second cavity and the third cavity have locking shoulders that prevent the plunger disposed therein from moving beyond a centralized position of the plunger so that when inertia moves the weight beyond a centralized position of the weight, a plunger compresses a spring to return the weight to the center, while the other piston and spring are prevented from acting on the weight; the device may comprise maintaining the weight, springs, and plungers within the bolt holder using an anvil; where the weight is configured to impact the anvil during forward and backward movement of the weight; the device may comprise holding the anvil at least partially within the bolt holder using a pin; where the bolt holder is configured for use in a member of an M16 / M4 family of firearms.
    A device may comprise a bolt support with a weight disposed on it so as to inhibit both backward and forward recoil of the bolt support.
    One method may comprise sliding a weight into a bolt holder so as to inhibit both backward and forward recoil of the bolt holder.
    A device may comprise: a bolt for a MI6 / MA firearm, the bolt may comprise: a plurality of latch ears formed on the bolt; a pipe extension a plurality of lock ears formed over the extension of the pipe in which the lock ears are configured to have a shear area that is at least approximately 1.3 times that of a standard MI6 / M4; where the shear area is increased in relation to that of a standard M16 / M4 by increasing the length of the lock ears; the device may comprise: a flange formed over the barrel extension in such a way that the flange is approximately 0.130 inches (3.302 mm) from a leading end of the barrel extension a support key configured to facilitate a stroke of a ferrule support within which the bolt is partially arranged, the bracket key being approximately 0.360 inches larger than that of a standard MI6 / M4; and a stop with a length that is approximately 0.360 inches (9.144 millimeters)
    smaller than the standard stop of the M16 / M4; where the device is a firearm. A bolt group may comprise: a bolt with a plurality of locking ears; and wherein the locking ears are configured to have a shear area that is at least approximately 1.3 times that of a standard MI6 / M4; in which the shear area is increased in relation to that of the standard M16 / M4 increasing the length of the lock ears; the device may comprise: a bolt tongue; and in which an over-displacement of the bolt tongue is approximately 0.355 inches (9.017 millimeters) in order to provide sufficient time for the bolt tongue to engage in a higher fire rate event; where a bolt offset is increased by 0.360 inches (9.144 millimeters) over the displacement of the standard M16 / M4 to reduce the firing rate of a firearm.
    One method may comprise: mounting a bolt for an M16 / M4 firearm on the firearm; and wherein the bolt comprises a plurality of locking ears configured to have a shear area that is at least approximately 1.3 times that of a standard M16 / M4.
    A method for operating a firearm, the method may - comprise: engaging locking ears of a bolt with complementary locking ears of a barrel extension and in which the locking ears of the bolt and the locking ears of the barrel extension are configured to have a shear area that is at least approximately 1.3 times the shear area of a standard M16 / M4; where the shear area is increased in relation to that of the standard MI6 / M4 by increasing the length of the lock ears; the device may comprise moving the bolt with an over-displacement of the bolt tongue of approximately 0.355 inches (9.017 millimeters) in order to provide sufficient time for the bolt tongue to engage in the event of increased gas pressure, firing rate,
    or speed of displacement of the bolt group; the device may comprise moving the bolt with an offset that is increased 0.360 inches (9.144 millimeters) with respect to the offset of the standard M16 / M4 to reduce the firing rate of a firearm; the device may comprise feeding cartridges by means of two feeding chutes which are larger and wider than the feeding chutes of the standard M16 / M4; the device may comprise unlocking the bolt after approximately the same delay and approximately the same pressure drop of the M16 standard using a double cut cam.
    A device may comprise: a bracket key configured to facilitate a bolt support stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of a standard M16 / M4; and a stop with a length that is approximately 0.360 inches (9.144 millimeters) less than the stop of a standard stop for the stop of the M16 / M4; where the support key is configured to attach to a bolt support with only one fastener; wherein the support key is configured to avoid interference with a portion of a lower receiver when the support and key are in a later position; where the device is a firearm.
    One method may comprise: attaching a bracket key to a bolt holder for an M16 / MA4 firearm, where the bracket key is configured to facilitate a bolt holder stroke that is approximately 0.360 inches (9.144 millimeters) longer than a standard M16 / M4; and insert a stop on the firearm, the stop with a length that is approximately 0.360 inches (9.144 millimeters) less than a standard stop for the M16 / M4 stop.
    One method may comprise: cycling a bolt holder for an M16 / MA4 firearm, where the bracket key is configured to facilitate a bolt holder stroke that is approximately 0.360 inches (9.144 millimeters) longer than that of an M16 / M4 standard; and where the bolt holder rests on a stop with a length that is approximately 0.360 inches (9.144 millimeters) less than a standard stop for the M16 / M4 stop.
    权利要求:
    Claims (32)
    [1]
    1. Firearm, characterized by the fact that it comprises: a bolt with a plurality of locking ears; a piston formed in the bolt and with a plurality of rings configured to cooperate with the piston to relieve gas leakage beyond the piston, each of the rings having a key formed in it and an interstice formed completely in it, in such a way that the interstice of a ring is configured to receive at least a portion of the key from another ring; a bolt support to which the bolt is movably attached, the bolt support having a double cut cam; a weight movably disposed within the bolt support, the weight being configured to inhibit back and forth of the bolt support; first and second springs that center the weight; a support key attached to the bolt support; a tube configured to supply gas from a firearm barrel to the piston via the support key, the tube having a heat radiator formed in at least a portion of the tube; a gas metering plug with a gas metering hole configured to measure gas from the barrel of a firearm in the ferrule bracket of the firearm, where the gas metering hole is located away from a gas orifice in the fire gun; and a front sight block with a rear band and a front band to attach the sight block to the barrel and with a gas passage formed in the front band to facilitate gas flow from the barrel to a gun gas tube.
    [2]
    2. Latch group for a firearm, characterized by the fact that it comprises:
    a hasp with a plurality of locking ears; a piston formed in the bolt and having a plurality of rings configured to cooperate with the piston to relieve gas leakage beyond the piston, each of the rings having a key formed in them and an interstice formed in it, in such a way that the interstice of a ring is configured to receive at least a portion of the key from another ring; a bolt support to which the bolt is movably attached, the bolt support having a double cut cam; a weight movably disposed within the bolt support, the weight being configured to inhibit back and forth of the bolt support; first and second springs that center the weight; and a support key attached to the ferrule support.
    [3]
    3. Method, characterized by the fact that it comprises: attenuating gas leakage in addition to a piston of a firearm using a plurality of rings, each of the rings having a key formed in them and an interstice formed in them; where the interstice of one of the rings is completely formed - it receives at least a portion of the key from one of the other rings; and inhibiting back and forth recoil of a bolt holder with a weight that is movably disposed within the bolt holder and first and second springs that centrally dispose of the weight.
    [4]
    4. Firearm, characterized by the fact that it comprises: a barrel; a gas orifice formed in the pipe; a gas pipe; a bolt support; a weight movably disposed within the bolt support, the weight being configured to inhibit back and forth of the bolt support; first and second springs that center the weight; a front sight block having a rear band and a bander to attach the sight block to the barrel and having a gas passage to facilitate gas flow from the barrel to a firearm gas tube; and a gas metering plug having a gas metering hole configured to measure gas from the barrel of the ferrule holder, wherein the gas metering hole is located away from the gas orifice.
    [5]
    5. Firearm, characterized by the fact that it comprises: a bolt support; a weight movably disposed within the bolt support; wherein the weight is configured to inhibit back and forth of the bolt support; and first and second springs that center the weight.
    [6]
    6. Firearm according to claim 5, characterized by the fact that the weight is configured to slide inside the bolt support.
    [7]
    7. Firearm according to claim 5, characterized by the fact that the weight is configured to impact an anvil after the bolt support begins to recede out of a position further from the bolt support in order to inhibit recoil of the bolt. bolt support.
    [8]
    8. Firearm according to claim 5, characterized by the fact that the weight is configured to impact an anvil after the bolt support begins to recede out of a more rear position of the bolt support in order to inhibit recoil of the bolt. bolt support.
    [9]
    9. Firearm according to claim 5,
    characterized by the fact that the weight is configured to impact an anvil after a bolt engages the ears of a firearm's bolt in order to inhibit recoil of the bolt support.
    [10]
    10. Firearm according to claim 5, characterized in that the weight is configured to impact an anvil after a bolt holder damper makes contact with a rear wall of a firearm receiver in order to inhibit recoil of the bolt support.
    [11]
    11. Firearm according to claim 5, - characterized in that it additionally comprises: a cavity formed within the bolt support and within which the weight slides.
    [12]
    12. Firearm according to claim 5, characterized by the fact that it additionally comprises: a cavity formed within the bolt support and within which the weight slides; and two pistons on which the springs are arranged.
    [13]
    13. Firearm according to claim 5, characterized by the fact that the weight is generally cylindrical.
    [14]
    14. Firearm according to claim 5, characterized by the fact that it additionally comprises: a first cavity formed within the bolt support and within which the weight slides; two pistons on which the springs are arranged; a second cavity and a third cavity formed within the weight, a spring and a plunger being disposed within each of the second cavity and the third cavity; and in which the second cavity and the third cavity have locking shoulders that prevent the plunger disposed in them from moving beyond a centralized position of the plunger so that when the inertia moves the weight beyond a centralized position of the weight, a plunger compresses a spring to return the weight to the center, while the other plunger and spring are prevented from acting on the weight.
    [15]
    5 15. Firearm according to claim 14, characterized by the fact that it additionally comprises an anvil configured to contain the weight, the springs, and the pistons within the bolt support.
    [16]
    16. Firearm according to claim 15, characterized by the fact that the weight is configured to impact the anvil during forward and backward movement of the weight.
    [17]
    17. Firearm according to claim 15, characterized in that it additionally comprises a pin configured to contain the anvil at least partially within the bolt holder.
    [18]
    18. Firearm according to claim 5, characterized by the fact that the bolt support is modified to work on revolvers that are driven by an operational rod and piston.
    [19]
    19. Method for assembling a firearm, characterized by the fact that it comprises: providing a bolt support; movably disposing a weight inside the bolt support; provide first and second springs that center the weight; and wherein the weight is configured to inhibit back and forth of the bolt support.
    [20]
    20. Method according to claim 19, characterized in that the weight is configured to slide inside the bolt support.
    [21]
    21. Method according to claim 19, characterized in that the weight is configured to impact an anvil after the bolt support begins to recede out of a position further from the bolt support in order to inhibit recoil from the bolt support. bolt.
    [22]
    22. Method according to claim 19, characterized in that the weight is configured to impact an anvil after the bolt support begins to recede out of a more rear position of the bolt support in order to inhibit recoil from the bolt support. bolt.
    [23]
    23. Method according to claim 19, characterized in that the weight is configured to impact an anvil after the bolt engages the bolt ears of a firearm in order to inhibit recoil of the bolt support.
    [24]
    24. Method according to claim 19, characterized in that the weight is configured to impact an anvil after a bolt holder damper makes contact with a rear wall of a firearm receiver in order to inhibit recoil bolt support.
    [25]
    25. Method according to claim 19, characterized in that the bolt support comprises a cavity within the —which weight slips.
    [26]
    26. The method of claim 19, characterized in that the bolt support comprises a cavity into which the weight slides and in which the springs are arranged in two pistons.
    [27]
    27. The method of claim 19, characterized in that the weight is generally cylindrical.
    [28]
    28. Method according to claim 19, characterized in that: the bolt support comprises a first cavity within which the weight slides;
    the springs are arranged in two pistons; the weight comprises a second cavity and a third cavity; a spring and a plunger are arranged within each of the second and third cavities; and the second cavity and the third cavity have locking shoulders that prevent the plunger disposed therein from moving beyond a centralized position of the plunger so that when inertia moves the weight beyond a centralized position of the weight, a plunger compresses one spring to return the weight to the center, while the other piston and spring are prevented from acting on the weight.
    [29]
    29. Method according to claim 28, characterized by the fact that an anvil is configured to contain the weight, the springs, and the plungers within the bolt support.
    [30]
    30. Method according to claim 29, characterized in that the weight is configured to impact the anvil during forward and backward displacement of the weight.
    [31]
    31. Method according to claim 29, characterized in that a stop pin is configured to hold the anvil at least - partially within the bolt holder.
    [32]
    32. Method according to claim 19, characterized by the fact that the bolt support is modified to work on revolvers that are driven by an operating rod and piston.
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR20140040110A|2014-04-02|
    US9038525B2|2015-05-26|
    KR101787160B1|2017-10-18|
    CN103443575A|2013-12-11|
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    HK1192003A1|2014-08-08|
    AR084869A1|2013-07-10|
    IL227443A|2017-04-30|
    CA2824765A1|2012-07-19|
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    CN103443575B|2016-01-13|
    TW201303257A|2013-01-16|
    AU2012205295A1|2013-08-01|
    TWI548857B|2016-09-11|
    SG191961A1|2013-08-30|
    RU2587319C2|2016-06-20|
    CA2824765C|2017-11-07|
    WO2012097327A2|2012-07-19|
    WO2012097327A3|2013-05-23|
    ZA201305237B|2017-06-28|
    EP2663827B1|2018-10-24|
    RU2013137855A|2015-02-20|
    EP2663827A2|2013-11-20|
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    法律状态:
    2020-08-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-11-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-11-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US201161433092P| true| 2011-01-14|2011-01-14|
    US201161433083P| true| 2011-01-14|2011-01-14|
    US61/433092|2011-01-14|
    US61/433083|2011-01-14|
    US201161478439P| true| 2011-04-22|2011-04-22|
    US61/478439|2011-04-22|
    US201161479194P| true| 2011-04-26|2011-04-26|
    US61/479194|2011-04-26|
    US201161498426P| true| 2011-06-17|2011-06-17|
    US61/498426|2011-06-17|
    US201161528062P| true| 2011-08-26|2011-08-26|
    US61/528062|2011-08-26|
    US13/348871|2012-01-12|
    US13/348,871|US9038525B2|2011-01-14|2012-01-12|Firearm|
    PCT/US2012/021358|WO2012097327A2|2011-01-14|2012-01-13|Firearm|
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