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 | .300 BLK | 
| BARREL LENGTH | 16.1 | 
| BARREL TWIST | 1:7 | 
| BARREL CONTOUR | MULTI ROLE | 
| BARREL MATERIAL | 4140CM | 
| BARREL TWIST | 1:7 | 
| MUZZLE THREAD | 5/8 X 24 | 
| GAS PORT LOCATION | CARBINE | 
| GAS BLOCK | 0.750″ | 
| FINISH | SBN | 





