Complete AR-15 16″ 9mm Upper w/ 10″ Slim M-Lok Hand Guard This is a complete AR15 upper chambered in 9mm. Bolt carrier group and mil-spec charging handle are included. This upper will match up with any brand 9mm lower receiver. Glock or Colt SMG magazines will function perfectly with any mil-spec AR15 lower using one of our Glock or Colt magwell adapters. This complete upper features a dual Glock/Colt compatible bolt carrier group. The upper receiver is T6 6061 billet with a 1913 picatinny rail flat top. It includes a 10″ free floating T6 aluminum slim M-Lok hand guard. The upper receiver and hand guard have a durable anodized finish. The 1:10 twist 16 inch barrel is 4150 chrome moly vanadium, nitride coated and made for us to our specifications. It is tipped with an indexed A2 flash hider/suppressor. Because this 9mm upper uses its own generated energy to cycle the next round, there is no need for a gas system, thus making it lighter. Lighter than most other AR 9mm uppers! This high quality upper will also match up with any brand 9mm lower receiver. It is complete and ready to shoot! Comes with the Barrier Defense lifetime warranty!  ****Know your states laws when purchasing gun parts.****