sbr ar15 down the barrel

20rd 300bo 30cal 30rd 50rd 57x28 adjustable ammo ar15 assault background barrel barreled black blackout blue bronze buffer bullets burnt caliber capacity chrome close collapsible combat control defense distressed down drum enforcement extended fde firearm furniture grip guard hand inch iron issolated lined loaded long looking lower magazine military muzzle optics paint pistol quarters recreational rifle shooting short shot side sights silencer skeletonized stock straight subsonic suppresed suppresor suppressed suppressor tactical this trigger tube upper weapon white with