| Caliber | .22 LR |
| Barrel Length | 9 |
| Barrel Twist | 1:16 |
| Barrel Contour | MC |
| Barrel Material | 4140CM |
| Barrel Twist | 1:16 |
| Muzzle Thread | 1/2 x 28 |
| Finish | Salt Bath Nitride |
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Barrel Sub-Assm, 9" MC 4140CM SBN, 22LR
Perfect for building your custom dedicated 22LR AR15 upper group.
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**All NFA rules apply** See linked CMMG Resource article for more information.