FIELD: weapons and ammunition.
SUBSTANCE: invention relates to hand-held automatic weapons. Automatic gun system with discharge of part of powder gases from barrel bore through hole in it comprises barrel with through hole for gas discharge, gas discharge chamber, device for fixed attachment of barrel, gate, gun frame with guides of bolt motion, return spring mechanism of breech mechanism and breech mechanism. Prior to firing, gas discharge chamber is tight, at firing it is opened by movement of breechblock upwards and backwards, during movement of breech block, its pressing to frame of weapon is carried out by clamping mechanism, movement of breechblock along frame is directed and fixed by means of blocks on gate, located in special slots of weapon frame.
EFFECT: technical result is higher reliability and resource of system, reduced recoil and force removal of stem, higher shot power.
7 cl, 3 dwg
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