Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
| CALIBER | .300 BLK |
| BARREL LENGTH | 16.1 |
| BARREL TWIST | 1:7 |
| BARREL CONTOUR | MT |
| BARREL MATERIAL | 416SS |
| BARREL TWIST | 1:7 |
| MUZZLE THREAD | 5/8 X 24 |
| GAS PORT LOCATION | CARBINE |
| GAS BLOCK | 0.750 |
| FINISH | BEAD BLASTED |
