FIELD: weapons and ammunition.
SUBSTANCE: invention relates to small arms, specifically to methods of ensuring recoil of centre of mass of shooting aggregate-mounted gun. Mounted gun comprises shooting aggregate, which consists of barrel, bolt and breech frame, carriage with guide and trigger unit in mounting lock trigger and firing mechanism of firing device. Method of providing recoil of centre of mass of shooting aggregate-mounted gun along barrel channel axis consists in fact that operator on lock release mechanism of retainer, locking before a shot shooting aggregate with gun carriage, comes out of engagement with ejection unit and actuates firing mechanism of shooting aggregate, resulting in centre of mass of shooting aggregate rolls along barrel channel axis, and then shooting aggregate rolls together with gun carriage.
EFFECT: higher accuracy and closer grouping of firing.
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