THIS PRODUCT IS BACKED BY THE CMMG LIFETIME QUALITY GUARANTEE.
Barrel and Collar Kit, 16.1" M4, 22LR
Perfect for building your custom dedicated 22LR AR15 upper group. Also Includes a barrel collar to replace the chamber adapter on your 22AR Conversion.
Technical Specifications
| Platform | Mk4 |
| Caliber | .22 LR |
| Barrel Length | 16.1 |
| Barrel Twist | 1:16 |
| Barrel Contour | M4 |
| Barrel Material | 4140CM, SBN |
| Barrel Twist | 1:16 |
| Muzzle Thread | 1/2 X 28 |
| Gas Port Location | N/A |
| Gas Block | N/A |
| Finish | SBN |