FIELD: weapons and ammunition.
SUBSTANCE: rifle moving parts comprises telescopic bolt frame, balancer and carriage articulated by tack with the help of sprocket fitted on pin in said carriage. Balancer wall has lengthwise closed groove in length not smaller than the stroke of moving parts. Spring-loaded retainer is arranged inside said carriage to enter said balancer groove. Bolt frame sidewall has through hole on retainer side. Retainer and hole are located so that at matched mutual position of balancer, carriage and bolt frame in their initial engagement said retainer rests on balancer end while bolt frame hole is located opposite the retainer.
EFFECT: ruled out inadequate assembly.
4 dwg
