FIELD: weapons and ammunition.
SUBSTANCE: invention relates to the field of armaments, namely to automatic small arms. Automatic small arms contain barrel with gas chamber, bolt carrier with gas piston, gas tube, bolt assembly with bolt lugs, retracting mechanism, lockwork, firing hammer, hammer spring with guide path, receiver cover, sound moderator, foregrip, butt stock, clip. To ensure straight line motion throughout the length of guide path of barrel extension, on two bolt lugs of the bolt assembly are made of profile grooves are located at the same level with lateral grooves of the bolt assembly and grooves of figuired flange of firing hammer. On one of the bolt lugs of the bolt assembly there is a groove for passage of bolt lug of the bolt assembly when installing bolt assembly with bolt carrier to barrel extension, firing-pin rear is made conical.
EFFECT: it is achieved to increase the reliability of automation and increase resource of weapon.
5 cl, 6 dwg
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