CMMG 8" 300 AAC Blackout AR-15 Barrel

CMMG 8" 300 AAC Blackout AR 15 Barrel Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLY Features: 8.0" Medium Taper Profile 4140 Chrome Moly Salt Bath Nitride Finish inside and out 1:7 Twist 300 AAC Blackout Chamber Threaded 5/8-24 Pistol length gas port .750 Gas Journal All NFA/ATF Rules Apply You may use this AR 15 barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm. Check your local laws and jurisdictions.