firearm black or silver a long, cylindrical barrel a grip for holding the gun a trigger a magazine for bullets a safety mechanism a sight or scope on top of the gun
pistol which has firearm pistol which has black or silver pistol which is a long, cylindrical barrel pistol which is a grip for holding the gun pistol which is a trigger pistol which is a magazine for bullets pistol which is a safety mechanism pistol which is a sight or scope on top of the gun