FIELD: weapons and ammunition.
SUBSTANCE: invention relates to the small arms. Semi-automatic firearms comprises a barrel with a barrel receiver and a butt, a gas unit with a gas tube, a trigger mechanism, a grip, a magazine and a bracket for mounting optics. Weapon is equipped with a power coupling made integral with the gas tube and the bracket for installation of optical sighting devices. Power coupling is fitted on the barrel by means of hot fit with pins. Gas tube and gas unit are installed with clearance up to 50 mm. Gas tube can be detachable.
EFFECT: high accuracy of firing and reduced effect of heating parts of weapons on withdrawal of middle point of ingress.
4 cl, 5 dwg
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