пружина ударника
firing pin retaining pin
firing point / firing pin
arming pin; safety pin
track pin retaining pin
belt-feed pawl pin / belt feed pawl pin
bolt handle spring retaining pin
cap retaining pin spring
ejector spring retaining pin
safety spring retaining pin
retractor spring pin
ejector pin spring
belt feed pawl spring / belt-feed pawl spring
belt feed lever pivot spring / belt-feed lever pivot spring
firing pin
impression of firing pin
inertia firing pin
knob of firing pin
firing pin piece of a rifle
firing pin safety
firing-lever axis pin
firing-pin guide
firing-pin impression
firing-pin rear
firing-pin stop
fixed firing pin
lug of firing pin
firing-pin lock
firing-pin mechanism
firing spring stop
firing spring
firing position / firing attitude
firing limit / firing cycles limit