CMMG PS90 5.7x28 Barrel 10.4" 1:9 Twist
CMMG 4150 chrome moly vanadium barrel for PS90 SBR projects. 10.4" length, chrome-lined, manganese phosphate coated, 1:9 twist, threaded M12x1.0 LH.
CMMG PS90 5.7x28 Barrel
This purpose-built barrel from CMMG is engineered specifically for PS90 SBR builds and upgrades. It represents a quality upgrade path for shooters looking to customize or rebuild their platform.
Construction & Materials
- Barrel Steel: 4150 chrome moly vanadium for durability and reliability
- Bore Treatment: Chrome-lined for extended service life and easier cleaning
- Finish: Manganese phosphate coating for corrosion resistance
- Length: 10.4 inches, optimized for short-barreled rifle configurations
- Twist Rate: 1:9 for stable performance with 5.7x28mm ammunition
- Chamber: 5.7x28mm, the efficient intermediate cartridge
- Threading: M12x1.0 left-hand for proper flash hider or adapter installation
Application
This barrel is designed as a direct fit for PS90 platforms. When paired with appropriate muzzle devices or thread adapters, it provides a complete foundation for your SBR project. The chrome-lined bore ensures reliable performance and simplified maintenance over extended use.
Specifications
The 10.4" length strikes a balance between velocity and handling characteristics ideal for short-barreled configurations. The 1:9 twist rate has been selected to stabilize the range of 5.7x28mm projectiles commonly used in this caliber.
