Perfect for building your custom MK3 upper group. Comes with properly installed barrel extension. All barrel sub-assemblies are properly headspaced.
- 18?
- Heavy Taper Profile
- 416 Stainless Steel
- Bead Blasted Finish
- 1:10 Twist
- 308 WIN Chamber
- Threaded 5/8-24
- Rifle Length Gas Port
- .936? Gas Journal
