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Barrel and Collar Kit, 4.5" MT 4140CM, 22LR



Due to high demand and supply chain issues affecting many industries, some of our parts and accessories may be on backorder and have an extended lead time. Items currently on backorder can still be purchased and orders will be shipped out in the order they were received. We apologize for the inconvenience and appreciate your patience as we traverse this extremely busy time.

Barrel and Collar Kit, 4.5" MT 4140CM, 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.

**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, SBN
Barrel Twist 1:16
Muzzle Thread 1/2 X 28
Gas Port Location N/A
Gas Block N/A

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