Anderson

Anderson 16 M4 Complete Upper With 15 Keymod Forearm; Carbine length gas set up M4 CONTOUR WITH A 1-8 TWIST S16 M4 contour barrel Chambered 5.56 NATO With Gas Hole drilled and parkerized finish. Anderson Keymod Hand Guard Rifle Length Anderson Knight Stalker Muzzle device M16 Carrier is chrome lined made from 8620 steel Bolt is made from 9310 steel and coated per mil spec. MPI Tested. The 223 Bolt and Bolt Carrier Assembly comes complete with cam pin firing pin and firing pin retainer and Standard Charging Handle.