SEMIAUTOMATIC PISTOL Russian patent published in 2001 - IPC

FIELD: weaponry. SUBSTANCE: the semiautomatic pistol has a body, slide with firing-pin stops installed on guides for axial movement, barrel with mating firing-pin stops, screw pair in the form of a block boss and a screw pair with a straight-line initial section, stops restricting the axial movement of the barrel, and a return mechanism. The firing-pin stops on the barrel are made in the form of at least two teeth uniformly arranged in circumference. A bush is fastened in the slide before the barrel firing-pin stops, mating firing-pin stops, central hole for the barrel and grooves, whose number equals the number of the barrel firing-pin stops, are made in the bush. The barrel firing-pin stops are shifted in the angular direction relative to the bush grooves through the angle of barrel turn at unlocking. A catch with a chamfered tooth is installed on a vertical pin in the body at the side of the barrel for engagement with the mating surface of the shoulder made on the breech end of the barrel in the rear position of the barrel. The internal wall of the slide body in the point of arrangement of the catch head has a recess in the direction of turn of the catch head over the entire length of recoil of the barrel together with the slide. EFFECT: enhanced close grouping of shots. 5 dwg