ствол, що швидко змінюється
quick-change barrel
quick detachable
barrel assembly (barrel group)
automatic heavy barrel rifle / heavy barrel automatic rifle
detachable
detachable cylinder head
detachable magazine
detachable plate
detachable rubbing plate
detachable side lock
detachable swivel
detachable valve seat
detachable wing panel
wheel detachable flange
quick fuze
quick loader
quick march
quick reaction capability
quick reaction force (QRF)
quick time
quick-disconnect latch
quick-firer
quick-impact projects
quick-release parachute
rapid-fire = quick-fire
mechanical time super quick (MTSQ)
quick smoke
quick-fire channel
feed-pawl holder (of quick-firing ordnance)
quick-firing system
quick position determination
breech casing (of quick-firing ordnance)