| 摘要 |
FIELD: small arms. SUBSTANCE: proposed automatic small arm presents weapon with belt supply of cartridges, for instance, machine-gun. One side of bolt frame has two parallel spiral surfaces for interaction with roller and protrusion of rocking feeder to decrease weight and dimensions, to enhance reliability and adaptability to manufacture of submachine-gun. Protrusion is made as one unit with working arm of feeder in the form of axle on which roller of feeder is put. EFFECT: improved functional characteristic of weapon. |
