Description Fully Transferable Colt M16 A1 Full Auto Machine Gun chambered in 5.56x45mm NATO with a 20″ Colt Chrome Bore barrel. Front A1 birdcage flash hider. A1 front gas block with bayonet lug and adjustable front sight post. A1 polymer Triangle handguard/heatshield. A1 fixed carry handle upper receiver with adjustable rear peep sight with two apertures. Tear drop forward assist. Three position selector, The semi-automatic setting is currently pinned and the rifle runs fully automatic ONLY. Unless altered back to allow select fire. Colt M16A1 forged lower receiver with textured polymer pistol grip. A1 fixed polymer rifle stock. Front and rear sling swivels. Also comes with a second 5.56x45mm Colt upper receiver with a 14.5″ 1/7 twist government profile barrel. A2 birdcage flash hider. A2 front gas block with bayonet luger and adjustable front sight post. Polymer ribbed carbine handguard. A2 style fixed carry handle upper receiver with adjustable rear sight. Tear drop forward assist button. Has charging handle but no bolt carrier group. One thirty round 5.56 Colt STANAG magazine marked for military and law enforcement. Lastly comes with a Confirmed Authentic Colt DOE (Department of Energy) 9mm slick side upper receiver with conversion magazine well. Features a 7.5″ barrel with folding front sight. Polymer round handguard. A1 style fixed carry handle upper receiver with adjustable rear sight. Rear T-charging handle and 9mm bolt carrier. Metal magazine well to convert 5.56 magazine well to accept 9mm stick magazines. Comes with four total magazines. Three are thirty-two round Colt stick magazines, and one is a Finnish Tikka made Suomi submachinegun drum magazine converted to fit the 9mm magazine well. The drum has been refinished but still shows Tikka stamps and [SA] property stamp. Fully Transferable on a Form 3, Ready to ship. NFA Item, THIS ITEM REQUIRES A $200 TAX STAMP AND APPROVAL BY THE ATF NFA BRANCH PRIOR TO PURCHASER TAKING POSESSION. Check local laws regarding “High Capacity” magazines. The lower in its current configuration IS CT legal, due to being currently configured to Full Auto Only. Can be easily converted by your gunsmith if purchased in a state where select fire is legal. Condition: Very good with light scratches, high edge wear, and general cosmetic handling wear. The A1 triangle handguard has a minor crack on the right side of the second vent from the receiver. Some spots of discoloration and patina on the finishes. Light wear on the internal/operational parts from normal use. Light scratches and marks on the furniture. All three of the bores are bright and clean with strong rifling. Barrel Length: 20″ 14.5″ 7.5″ Serial: 9456903 Manufacturer: COLT Caliber: 5.56x45mm, .223 Rem, 9mm Model: M16A1 Book# 07725