Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.
**All NFA rules apply**
All CMMG prodcuts come with their Lifetime Quality Guarantee.
| CALIBER | .300 BLK | 
| BARREL LENGTH | 8 | 
| BARREL TWIST | 1:7 | 
| BARREL CONTOUR | MT | 
| BARREL MATERIAL | 4140CM | 
| BARREL TWIST | 1:7 | 
| MUZZLE THREAD | 5/8 X 24 | 
| GAS PORT LOCATION | PISTOL | 
| GAS BLOCK | 0.750" | 
| FINISH | SBN | 
- Manufacturer Part Number:
 - 30D810A
 - Sub Category:
 - Barrels
 - Cartridge:
 - 300 AAC Blackout
 - Length:
 - 8"
 - Gas System Length:
 - Pistol
 - Gas Block Diameter:
 - .750″
 - Profile:
 - MT
 - Barrel Finish:
 - Salt Bath Nitride
 - Twist Rate:
 - 1:7
 - Muzzle Threads:
 - 5/8x24
 - Firearm Make:
 - AR15
 - Made in the USA:
 - Yes