Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. - 18 - Medium Taper Profile - 416 Stainless Steel - Bead Blasted Finish - 1:7 Twist - 5.56
45 NATO Chamber - Threaded 1/2-28 - Rifle length gas port - .75 Gas Journal
Products specifications
| Manufacturer | CMMG |
| SubCategory | Barrels & Actions, ACCESSORIES-BARRELS & ACTIONS |
| Category | ACCESSORIES |
| Stock Status | Out of Stock |