quick-firing gun

feed-pawl holder (of quick-firing ordnance)

quick-firing system

breech casing (of quick-firing ordnance)

AA quick-firing weapons

anti-aircraft quick-firing weapon

quick-firing ammunition

quick-firing cartridge

quick-firing loading

Ordnance Quick Firing 6-pounder / QF6-pounder / six-pounder

firing point / firing pin

firing position / firing attitude

firing limit / firing cycles limit

bring a gun into firing position

flechette-firing gun

firing by runaway gun

gun firing by direct laying

gun-firing envelope

L119 light gun (105 mm light gun)

submachine gun / sub-machine gun (SMG; smg)

gun control equipment / gun-control equipment (GCE)

duck gun (duck-gun)

flame gun / flaming gun

gun by gun

quick fuze

quick loader

quick march

quick reaction alert

quick reaction capability

quick reaction force (QRF)

quick time

quick-change barrel

quick-disconnect latch