Product Description
The CMMG 16.1" Lightweight Salt Bath Nitride (SBN) barrel is built for lightweight AR-15 upper builds while maintaining durability and reliability. Featuring a light taper profile and a corrosion-resistant salt bath nitride finish, this barrel includes a properly installed M4 barrel extension and is assembled with correct headspacing. A 1:7 twist rate and 5.56x45 NATO chamber support a wide range of common 5.56 loads, while the mid-length gas port helps balance cycling and recoil impulse.
Product Highlights
- 16.1" lightweight, light taper profile ideal for custom lightweight AR-15 builds
- Salt Bath Nitride finish for enhanced wear resistance and corrosion protection
- 1:7 twist with a 5.56x45 NATO chamber for versatile 5.56 NATO performance
- Mid-length gas port for balanced operation and smoother cycling characteristics
- Threaded 1/2-28 muzzle with a .625" gas journal for common AR-15 compatibility
Specs
- Brand: CMMG
- Manufacturer Part Number: CMM55D470B
- UPC: 815835018102
- Platform: AR-15
- Caliber/Chamber: 5.56x45 NATO
- Barrel Length: 16.1 in
- Profile: Light Taper
- Material: 4140CM
- Finish: Salt Bath Nitride
- Twist Rate: 1:7
- Muzzle Threads: 1/2-28
- Gas System Length: Mid-length (mid length gas port)
- Gas Journal: 0.625 in
- Extension: M4 barrel extension (installed)
- Assembly Note: Properly headspaced barrel sub-assembly
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