Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension, barrel nut, handguard cap, pinned “F” marked front sight base, sling loop, and front sight post. All barrel assemblies are properly headspaced.
TECHNICAL SPECIFICATIONS
| CALIBER | 5.56X45MM |
| BARREL LENGTH | 16.1 |
| BARREL TWIST | 1:7 |
| BARREL CONTOUR | MT |
| BARREL MATERIAL | 4140CM |
| BARREL TWIST | 1:7 |
| MUZZLE THREAD | 1/2 X 28 |
| GAS PORT LOCATION | MID |
| GAS BLOCK | “F” MARKED FRONT SIGHT BASE |
| FINISH | SBN |
