AR6460 = law enforcement semi-auto carbine with retractable inventory and 16 inch very long barrel and bayonet lug Latest manufacturing may be the AR6450 of Colt’s Legislation Enforcement Only line of weapons. This version makes use of regular mil-spec small pin upper and lessen receivers. There isn't any automated sear https://colt-smg-upper-receiver29528.ttblogs.com/6076808/a-secret-weapon-for-colt-9mm-upper