затворна рама з газовим поршнем
gas piston
bolt carrier
bolt carrier assembly
bolt carrier key
bolt carrier stopper
carrier hinge bolt
troop-carrier squadron / troop carrier squadron
gas gun; (tear) gas launcher
piston
piston pin
short piston travel
recuperator piston
recuperator-piston rod
recuperator-piston rod nut
replenisher piston head
bearing piston pin
bottom rib of piston
circumferentially compressible piston ring
compound piston ring
counteracting piston type buffer
distributor piston
U slot of piston
vacuum piston
valve piston
valve-in-piston
varnish on the piston
ejection piston
face of piston ring
hammered piston ring
head of piston
inside beveled piston ring
inverted beveled piston ring