Cmmg Barrel Sub-assembly, Cmmg 30d810a Barrel 8in Mc 4140cm 300

Perfect for building your custom ar15 upper group.Comes with properly installed m4 barrel extension.All barrel sub-assemblies are properly headspaced.

Caliber Or Gauge: 300 AAC Blackout/Whisper (7.62x35mm)
Length: 8"
Model: Barrel Sub-Assembly
Twist: 1:7"
Sights: None
Finish: Nitride
Type: Rifle
Barrel Type: Pistol Length
Barrel Features: Medium Taper Profile