The CMMG AR Rifle Barrel, 300 AAC Blackout, is an 8-inch barrel featuring a 1:7Twist and a pistol length gas system. Ideal for creating your custom AR15 upper group, it comes with a properly installed M4 barrel extension and ensures all barrel sub-assemblies are properly headspaced.
Specs
| Model No. | CMMG30D810A |
| Manufacturer | CMMG |
| Color | Black |
| Caliber | 300 Blackout |
| Barrel Length | 8 |
