Perfect for building your custom Mk3/High Pattern LR-308 upper group. Comes with a properly installed barrel extension. All barrel sub-assemblies are properly headspaced and comes with CMMG’s Lifetime Quality Guarantee.
**All NFA rules apply** See linked CMMG Resource article for more information.
TECHNICAL SPECIFICATIONS
| PLATFORM | MK3 |
| CALIBER | .308 WIN |
| BARREL LENGTH | 12.5 |
| BARREL TWIST | 1:10 |
| BARREL CONTOUR | MT |
| BARREL MATERIAL | 4140CM |
| BARREL TWIST | 1:10 |
| MUZZLE THREAD | 5/8 X 24 |
| GAS PORT LOCATION | MID |
| GAS BLOCK | 0.750″ |
| FINISH | SBN |
