Perfect for building your custom dedicated 22LR AR15 upper group.
**All NFA rules apply** See linked CMMG Resource article for more information.
TECHNICAL SPECIFICATIONS
| CALIBER | .22 LR |
| BARREL LENGTH | 4.5 |
| BARREL TWIST | 1:16 |
| BARREL CONTOUR | MT |
| BARREL MATERIAL | 4140CM |
| BARREL TWIST | 1:16 |
| MUZZLE THREAD | 1/2 X 28 |
| GAS PORT LOCATION | N/A |
| GAS BLOCK | N/A |
| FINISH | SBN |
