Cmmg's barrel sub-assembly is ideal for building your custom ar-15 upper group.It comes with properly installed m4 barrel extension.
Caliber Or Gauge: 300 AAC Blackout/Whisper (7.62x35mm)
Length: 16.10"
Model: Barrel Sub-Assembly
Twist: 1:7"
Sights: None
Finish: Nitride
Type: Rifle
Barrel Type: Carbine Length
Barrel Features: Medium Taper Profile
Caliber Or Gauge: 300 AAC Blackout/Whisper (7.62x35mm)
Length: 16.10"
Model: Barrel Sub-Assembly
Twist: 1:7"
Sights: None
Finish: Nitride
Type: Rifle
Barrel Type: Carbine Length
Barrel Features: Medium Taper Profile
