FIELD: weapons and ammunition.
SUBSTANCE: invention refers to the field of armament, namely to small arms. Small arms contain the barrel box with the barrel, the shoe fixed in the receiver, the cover, in the upper part of which the plate is installed. Fixation of the lid on the receiver in the working position is carried out in the front part using the transversely biased retention pin that cooperates with the opening in the projection of the lid and the opening in the shoe, and in the rear part – by the spring-loaded roller, which is designed with the possibility of its longitudinal movement in the grooves of the lid and which interacts with the prismatic groove made in the projections on the back-plate.
EFFECT: higher operating characteristics.
1 cl, 4 dwg
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