Product Description
The CMMG Replacement Barrel Kit with Collar is built for shooters who want to assemble a dedicated .22 LR AR-15 upper with proven CMMG compatibility. This 16.1-inch M4-contour barrel is made from durable 4140 chrome moly/chromoly steel and finished in a black nitride (salt bath nitride) treatment for corrosion resistance. It includes the barrel collar needed to replace the chamber adapter on a .22 AR conversion and to support a dedicated .22 LR bolt carrier group (BCG) build.
Product Highlights
- Purpose-built replacement barrel kit for dedicated .22 LR AR-15 upper assemblies
- Includes barrel collar to replace the chamber adapter on .22 AR conversions
- 16.1-inch M4 contour with 1:16 twist optimized for .22 Long Rifle
- 4140 chrome moly/chromoly steel construction with black salt bath nitride finish
- Threaded 1/2"-28 muzzle for common rimfire muzzle devices and suppressor mounts
Specs
- Brand: CMMG
- Manufacturer Part Number: 22D7C4A
- UPC: 815835014944
- Caliber: .22 Long Rifle (.22 LR)
- Barrel Length: 16.1 in (16.10 in stated)
- Material: 4140 Chrome Moly/Chromoly Steel
- Finish: Black Nitride / Black Salt Bath Nitride
- Twist Rate: 1:16
- Barrel Contour: M4
- Muzzle Threads: 1/2"-28
- Gas Block Diameter / Journal: 0.750 in
- Compatibility: AR-15 (dedicated .22 LR upper build)
- Included: Barrel collar
- Chrome Lined: No
- Shipping Weight (approx.): 1.96 lb
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