| 摘要 |
FIELD: armaments and ammunition.SUBSTANCE: automatics of small-arms weapon includes sleeve with screw-type or shaped shoulders, and combat shoulders of barrel breech, having screw-type or shaped and parallel facets. The sleeve is secured on the weapon frame, where barrel moves along its axis, rotating around it by screw-type or shaped slots in its breech. The combat shoulders of the barrel breech are in the screw-type or shaped slots of the casing-breechblock or in rectangular slots of the casing-breechblock during automatics operation.EFFECT: improved reliability and simplifying of automatics design.2 dwg |
