FIELD: armaments and ammunition.
SUBSTANCE: automatics of small-arms weapon includes lock cylinder having rectangular lock shoulder and bevelled shoulder. The bevelled shoulder is located in the bevelled slot of the weapon frame. The rectangular lock shoulder of the lock cylinder is located in the slot of boss of the barrel breech end or breech opening with barrel, as well as in the transverse cutout-breechblock or breechblock.
EFFECT: increased reliability and simple design of automatics of small-arms weapon.
2 dwg
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