FIELD: firearms.
SUBSTANCE: small arm comprises a receiver with a barrel cantilever fitted into the said receiver, a bolt carrier with a bolt, a gas piston with an explosive gas extraction from the barrel muzzle which has a muzzle attachment. The small arm has a gas exhaust connecting the internal cavity of the muzzle attachment to the gas cylinder and a piston with a rod, which interacts with the bolt carrier. The small arm has a frame in which the barrel is encased. The frame is fastened with the receiver. The gas exhaust and the gas cylinder are fixed inside the frame. The muzzle attachment is formed by transverse bulkheads fixed inside the frame. One of the said bulkheads is positioned in front of the barrel and it has a hole for bullet passage, while the second bulkhead is fixed in the chase of the weapon with a barrel gap. The frame has through ventilation holes.
EFFECT: small arm accuracy increase.
2 cl, 2 dwg
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