CMMG 8" .300 BLK 4140CM SBN AR15 Barrel Assembly
- Item Number: 30D810A
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- Condition: NEW
$174.99
$199.95
Product Description
This 8-inch .300 BLK barrel assembly is designed for custom AR15 upper builds and features a properly installed M4 barrel extension. Manufactured from 4140 chrome moly steel with an SBN finish, it is properly headspaced and configured with a pistol-length gas system for reliable performance. The barrel utilizes a 1:7 twist rate and 5/8x24 muzzle threads, making it suitable for a wide range of .300 BLK applications.
Product Features
- Designed for custom AR15 upper receiver builds.
- Properly installed M4 barrel extension.
- Properly headspaced barrel assembly.
- 4140 chrome moly steel construction.
- SBN finish.
- Pistol-length gas system.
- 1:7 twist rate.
- 5/8x24 threaded muzzle.
Product Specifications
- Manufacturer: CMMG
- Model: Barrel Sub-Assembly
- Caliber: .300 BLK
- Barrel Length: 8"
- Barrel Twist: 1:7
- Barrel Contour: MT
- Barrel Material: 4140CM
- Muzzle Thread: 5/8x24
- Gas Port Location: Pistol
- Gas Block Diameter: .750"
- Finish: SBN
- Weight: 1.3 lbs
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