Commonly Purchased with Barrel Sub-Assm, 8.0" MT 4140CM SBN, 300 BLK
Gas Tube Kit, Pistol/PDW
Starting at
$15.95
ZEROED Adjustable Gas Block
Starting at
$79.95
Barrel Sub-Assm, 8.0" MT 4140CM SBN, 300 BLK
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** See linked CMMG Resource article for more information.
All CMMG prodcuts come with our Lifetime Quality Guarantee.
Specifications
| Caliber | .300 BLK |
| Barrel Length | 8 |
| Barrel Twist | 1:7 |
| Barrel Contour | MT |
| Barrel Material | 4140CM |
| Muzzle Thread | 5/8 X 24 |
| Gas Port Location | Pistol |
| Gas Block | 0.750" |
| Finish | SBN |
| Weight | 1.3 lbs |