Modular lightweight squad automatic weapon system
First Claim
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1. A gas operated gun, comprising:
- a gun barrel adapted to contain a gas under pressure for propelling a projectile through said barrel,a receiver having a pair of elongated, substantially parallel hollow tubes,said receiver further having bracket means connected to each of said tubes for securing said tubes fixedly in spaced-apart relationship and also for securing said gun barrel between said tubes,elongated force-transmitting means including operating rods longitudinally moveable within each of said tubes,gas cylinder means connected between said gun barrel and said force-transmitting means, for applying force generated from said gas under pressure to said force-transmitting means,a cartridge feeding mechanism rotatably mounted on one of said tubes and a bolt carrier slidably mounted on the other tube, anda main drive pin inter-connecting said rods,said tubes having slots therein along which said drive pin rides in response to gas pressure applied to said operating rods,said drive pin being operatively connected to said cartridge feeding mechanism and to said bolt carrier.
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Abstract
A lightweight one man portable automatic gas-operated weapon system for intry use having symmetrical forces applied to recoiling parts by use of two parallel gas pressure actuated rods acting in unison. An integral sprocket feed system is actuated by the recoiling parts and avoids gross asymmetrical force movements about the weapon'"'"'s center of gravity resulting from shifting ammunition weight. A dual tube receiver and dual gas system is featured in the weapon. Major weapon subassemblies comprising modules are operatively interrelated to facilitate replacement during field use of the weapon.
124 Citations
11 Claims
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1. A gas operated gun, comprising:
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a gun barrel adapted to contain a gas under pressure for propelling a projectile through said barrel, a receiver having a pair of elongated, substantially parallel hollow tubes, said receiver further having bracket means connected to each of said tubes for securing said tubes fixedly in spaced-apart relationship and also for securing said gun barrel between said tubes, elongated force-transmitting means including operating rods longitudinally moveable within each of said tubes, gas cylinder means connected between said gun barrel and said force-transmitting means, for applying force generated from said gas under pressure to said force-transmitting means, a cartridge feeding mechanism rotatably mounted on one of said tubes and a bolt carrier slidably mounted on the other tube, and a main drive pin inter-connecting said rods, said tubes having slots therein along which said drive pin rides in response to gas pressure applied to said operating rods, said drive pin being operatively connected to said cartridge feeding mechanism and to said bolt carrier. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A modular lightweight automatic weapon system including:
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a receiver having dual tubes spaced apart and connected by a main end cap and a forward tube guide, a barrel having a barrel extension held by said main end cap and a gas housing connected to said front tube guide, said barrel having a bore through which a fired cartridge passes, said gas housing having orifices interconnecting said bore and said forward tube guide, operating rods slidably mounted witin said tubes and having a bolt carrier carried thereby, said bolt carrier being operable when moved forwardly to move a cartridge into said barrel extension and maintain itself therebehind until said cartridge is fired, said operating rods being actionable by gases in said bore to move said bolt carrier rearwardly for ejection of spent cartridge cases, and means indexing another cartridge in position for movement into said barrel extension upon subsequent forward movement of said bolt carrier. - View Dependent Claims (8, 9, 10)
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11. A gas operated gun, comprising:
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a gun barrel adapted to contain a gas under pressure for propelling a projectile through said barrel, a receiver having a pair of elongated, substantially parallel hollow tubes, said receiver further having bracket means connected to each of said tubes for securing said tubes fixedly in spaced-apart relationship and also for securing said gun barrel between said tubes, elongated force-transmitting means within each of said tubes, gas cylinder means connected between said gun barrel and said force-transmitting means, for applying force generated from said gas under pressure to said force-transmitting means, a main drive connected to each of said force-transmitting means for movement therewith, a bolt carrier slidably mounted on one of said tubes and movable with said main drive, a cartridge feed mechanism rotatably mounted on the other of said tubes, said main drive being operatively connected to said feed mechanism to cause rotation thereof upon movement of said drive.
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Specification