Description

Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.

Additional information

mycustom

Barrel Length#8", 10.5", 16.1"~Caliber#5.56 mm NATO, 5.7 x 28 mm, 22 Long Rifle, 300 AAC Blackout, 350 Legend~Finish#Black, Nitride, Salt Bath Nitride~Fit#AR-15, PS90 Variations# CMMG, Barrel Sub-Assembly, 5.56x45mm NATO, 16.10", Black Nitride Finish, 4140 Chromoly Steel, Carbine Length, M4 Profile, AR-15, CMMG, Barrel Sub-Assembly, 5.56x45mm NATO, 16.10", Black Nitride Finish, 4140 Chromoly Steel, Midlength, Medium Taper Profile, AR-15