FIELD: armaments and ammunition.
SUBSTANCE: shooting self-loading gun contains barrel extension, turning barrel, delayed blowback with striker, its return coiled spring and magazine for rounds. The turning barrel is located in cylindrical hole of the barrel extension, and is expanded in it against axial movement forward. On the external surface of the barrel cylindrical part two similar slots are made opposite, two parts of their length are made at different inclination angles to the longitudinal axis of the turning barrel, one part of slot lengths is made at angle 30-35°, and another lock part of the slot lengths is made at angle 60-70°. The slots are in permanent connection with two interacting diamond-shaped projections of lightweight delayed blowback with striker.
EFFECT: increased initial speed of bullet escape from rifled channel of barrel.
4 dwg
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