MACHINE GUN Russian patent published in 2010 - IPC F41C7/00 F41A5/26 

FIELD: weapons.

SUBSTANCE: invention relates to small arms and represents a machine gun consisting of barrel, breech box, breech frame with breech block and gas chamber. Besides it comprises additional T-shaped gas chamber coupled with barrel by its top part. Barrel wall has side hole to allow gas to flows from barrel into T-shaped gas chamber. T-shaped gas chamber inner space accommodates valve moving in lengthwise direction and having a hole to superimpose hole arranged in barrel sidewall. Inner space of T-shaped chamber accommodates two springs. One end of each spring thrusts against sidewall of said T-shaped gas chamber, while opposite end rests on lateral edge of aforesaid valve that moves in lengthwise direction. Top part of T-shaped gas chamber accommodates revolving drum with orifices to allow gasses to pass into inner space of T-shaped gas chamber, while bottom part of T-shaped gas chamber has additional hole for gas release.

EFFECT: artificial scatter of bullets thanks to varying initial velocities.

1 dwg