Description

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
16.1″ Medium Taper Profile416 Stainless SteelBead Blasted Finish1:7 Twist5.56×45 NATO ChamberThreaded 1/2-28Midlength gas port.750″ Gas Journal