#gun  a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
  supertype:  weapon__weapon_system__arm  instrument used in fighting or hunting; "he was licensed to carry a weapon"
  subtype:  air_gun  antiaircraft_gun  breechloader  cannon.gun  firearm  gas_gun  minute_gun  Quaker_gun  set_gun  whaling_gun
  part:  action_mechanism__action  the operating part that transmits power to a mechanism; "the piano had a very stiff action"
     part:  key.lever  a lever that actuates a mechanism when depressed
  part:  gun_barrel__gunbarrel__barrel  a tube through which a bullet travels when a gun is fired
  part:  cartridge_ejector__cartridgeejector__ejector  a mechanism in a firearm that ejects the empty shell case after firing
  part:  cartridge_extractor__cartridgeextractor__cartridge_remover__cartridgeremover__extractor  a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector
  part:  cartridge_holder__cartridgeholder__cartridge_clip__cartridgeclip__clip__magazine  a metal frame or container holding cartridges; can be inserted into an automatic gun
  part:  firing_chamber__gun_chamber  chamber that is the part of a gun that receives the charge
  part:  gunlock__firing_mechanism  the action that ignites the charge in a firearm
     part:  gunlock_hammer__gunlockhammer__hammer  the part of a gunlock that strikes the percussion cap when the trigger is pulled
  part:  gun_muzzle__gunmuzzle__muzzle__gunpoint  the open discharging end of a gun
  part:  gunsight  a sight used for aiming a gun
     part:  view_finder__finder  optical device that helps a user to find the target of interest
  part:  gun_trigger__guntrigger__trigger  lever that activates the firing mechanism of a gun
  part:  safety_catch__safety_lock  guard consisting of a locking device that prevents a weapon from being fired
  part:  gunstock__stock  the handle of a handgun or the butt end of a rifle or shotgun or part of the support of a machine gun or artillery gun; "the rifle had been fitted with a special stock"

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