CMMG's Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension. The barrel is constructed of 4140 chrome moly with a slat bath nitride finish and 5/8x24" threads.
Specifications
- Type: Rifle
- Model: Barrel Sub-Assembly
- Finish: Nitride
- Length: 16.10"
- Twist: 1:7"
- Barrel Type: Carbine Length
- Caliber or Gauge: 300 AAC Blackout/Whisper (7.62x35mm)
- Barrel Features: Multi Role Profile
CMMG | MPN: 30DF80A | UPC: 815835011028