шток поршня накатника
recuperator-piston rod
recuperator-piston rod nut
recoil rod assemble
control rod (of recoil buffer)
counter-recoil
counter-recoil spring adjusting plug
force of counter-recoil
primary recoil counter
proton recoil counter (tube)
proton recoil proportional counter (tube)
recoil counter
secondary recoil counter
maritime counter terrorism (MCT) / counter-terror measures
counter reconnaissance / counter-reconnaissance
gas piston
piston
piston pin
short piston travel
recuperator piston
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