firing lock

wheel lock pistol (wheellock / wheel-lock)

infrared lock (IR Lock)

firing-pin lock

firing point / firing pin

firing position / firing attitude

firing limit / firing cycles limit

barrel lock lever

hydraulic lock

lock and load

lock washer

lock-on (by an interceptor)

percussion lock

tail-wheel lock

Saline Lock

combat lock

sling lock

Venturi lock screw

adjuster lock nut

adjusting lock nut

axle lock nut

bearing cap lock

bolt-lock pin

bolt-sleeve lock

bolt-sleeve lock spring

bound by a trigger lock

breech lock

buffer-body spring lock

bushing lock

chain lock

combination lock primer

cover lock plate

cradle traveling lock