CMMG 8" 300 AAC Blackout AR 15 Barrel

CMMG 8" 300 AAC Blackout AR 15 BarrelPerfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLYFeatures:8.0"Medium Taper Profile4140 Chrome MolySalt Bath Nitride Finish inside and out1:7 Twist300 AAC Blackout ChamberThreaded 5/8-24Pistol length gas port.750 Gas JournalAll NFA/ATF Rules ApplyYou 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.