| 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 |
| Weight | 1.5 lbs |
AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.
Barrel Sub-Assm, 4.5" MT 4140CM, 22LR
Perfect for building your custom dedicated 22LR AR15 upper group.
**All NFA rules apply** See linked CMMG Resource article for more information.