Rosco Manufacturing Bloodline 11.5" M4 5.56 NATO AR15 Barrel

Rosco Manufacturing Bloodline 11.5" M4 5.56 NATO AR 15 BarrelThe Rosco Manufacturing Bloodline 11.5" M4 5.56 NATO AR-15 barrel is designed to meet the modern-day requirements for a quality AR-15 barrel. Rosco Manufacturing has successfully accomplished this by selecting the right twist rates, gas port diameters, and barrel materials for each barrel (not a one-size-fits-all approach). They have also listened to input from consumers and military end users to bring you the quality rifle barrels you need.Specifications Nitride Finish 11.5" Barrel Length 5.56 NATO/.223 REM 4150 CMV 1:7 Barrel Twist 1/2x28 Thread Pattern 20.82 Oz .750 Gas Block Journal Carbine Length Gas Made In The USAAll 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.