PISTOL Russian patent published in 2003 - IPC

FIELD: firearms. SUBSTANCE: pistol includes carrier, trigger, barrel with gas-releasing hole leading to gas cylinder, gas piston, shut-off rollers, bolt comprising two parts, tripping device. Novelty of invention lies in installation in carrier of at least one spring-loaded roller interacting with bolt at moment of shot and of additional springy member interacting with shut-off roller when trigger is pressed. Gas-releasing hole divides space of gas cylinder in point of exit into shut-off-brake space and damping space. Spring-loaded shut-off roller functions as tripping device. EFFECT: reduced shock load on carrier and bolt, diminished recoil and increased reliability of barrel locking. 1 cl, 1 dwg