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 products come with our Lifetime Quality Guarantee.
TECHNICAL SPECIFICATIONS
| CALIBER | .300 BLK |
| BARREL LENGTH | 12.5 |
| BARREL TWIST | 1:7 |
| BARREL CONTOUR | MULTI ROLE |
| BARREL MATERIAL | 4140CM |
| BARREL TWIST | 1:7 |
| MUZZLE THREAD | 5/8 X 24 |
| GAS PORT LOCATION | PISTOL |
| GAS BLOCK | 0.750″ |
| FINISH | SBN |
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