(пружинний затвор)
bolt handle spring retaining pin
bolt spring
bolt-sleeve lock spring
bolt-spring stop
belt feed pawl spring / belt-feed pawl spring
belt feed lever pivot spring / belt-feed lever pivot spring
bolt assembly
bolt carrier
bolt catch
bolt latch
bolt recess
bolt-action
bolt-from-the-blue attack
drop bolt
explosive bolt (pyrotechnic fastener)
face of the bolt
bolt action repeater
axle-tree retaining bolt locking pin
open bolt
bolt carrier assembly
bolt carrier key
bolt carrier stopper
carrier hinge bolt
key bolt
lug bolt key
slave bolt
assembly of bolt
big-end bolt
bolt
bolt action
bolt camming lug
bolt goes fully home