Rosco Manufacturing Bloodline 11.5″ M4 5.56 NATO AR 15 Barrel
The 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 picking the right twist rates, gas port diameters, and barrel materials according to the barrel they make (not a one-size-fits-all). They have also listened to input from consumers and military end users to bring you the quality rifle barrels you need.
Featured
- Nitride Finish
- 11.5″ Barrel Length
- 5.56 NATO/.223 REM
- 4150 CMV
- 1:7 Barrel Twist
- 1/2×28 Thread Pattern
- 20.82 Oz
- .750 Gas Block Journal
- Carbine Length Gas
- Made In The USA
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.






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