MODULAR SMALL FIREARMS WITH SEMI-FREE BOLT RECOIL Russian patent published in 2023 - IPC F41C7/00 

FIELD: firearms.

SUBSTANCE: firearms contain a receiver, a magazine, a magazine insert, a firing mechanism module, a barrel module consisting of a barrel, a landing collar with recesses or grooves with the possibility of rigid attachment to the barrel and muzzle devices, weapon control mechanisms and a bolt group consisting of a bolt, a bolt cylinder and bolt recoil braking elements, with the possibility of longitudinal movement along the guides of the receiver. The operability of the automatic firearm system when changing the barrel module is ensured by the design of the bolt cylinder and bolt recoil braking elements made replaceable.

EFFECT: simplification of the design, an increase in manufacturability, a reduction in weight, an increase in the accuracy of automatic firing from unstable positions.

5 cl, 3 dwg