AR-15 16" A3 Carbine Parts Kits 5.56 NATO/.223

AR-15 16" A3 Carbine Parts Kits 5.56 NATO/.223 This 16" rifle kit comes with everything needed to complete a stripped lower receiver. It includes a fully assembled, headspaced and test-fired upper receiver, lower parts kit and buttstock. The rifle kit does not include stripped lower receiver or magazines. Specifications Barrel Chrome moly vanadium M4 feed ramps 16" length 1x9 twist A2 flash hider Manganese phosphated Phosphated under front sight base Taper pins in F-marked front sight base Threaded muzzle Heavy profile Chamber 5.56 X 45 mm Bolt And Carrier Phosphated 8620 steel carrier assembly Carpenter 158 bolt HPT/MPI tested Heat treated and plated Mil-spec Chrome lined carrier interior Carrier Key - chrome-lined, attached with grade 8 screws Properly staked & sealed gas key Handguards Carbine length Aluminum delta ring Single heat shield Upper Receiver Forged 7075 T6 aluminum A3 flat top with M4 feed ramps Hard coat anodized Mil-spec Ejection port cover and round forward assist Right hand ejection Bore's surface coated with dry film lube, over the anodized surface Buttstock M4 5 position Reinforced fiber Mil-spec sized tube