Black Rifle Depot 10.5" .223 Wylde AR-15 Barrel 1:8 Twist M4 Contour

10.5" .223 Wylde Barrel - 4150 Black Nitride, M4 Contour, Carbine-Length Gas, 1:8 Twist Black Rifle Depot's .223 Wylde barrels are manufactured from 4150 Chrome Moly Vanadium barrel steel with button rifling and QPQ Nitride treatment for extra corrosion resistance and barrel life. Specifications Nitride/Melonite Finish M4 Barrel Profile 5.56 NATO Cartridge Compatibility 4150 CMV Barrel Steel 1:8 barrel twist Carbine-Length Gas system 1/2x28 muzzle thread 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.