Ballistic Advantage BABL556024M Modern Series Fits AR-15 5.56x45mm NATO 12.50″ Black QPQ Chrome Moly Vanadium Steel

This 5.56 chambered 12.5″ Government Profile Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.Specs- 750″ Gas block journal gas system length- carbine and a Government profile. All NFA/ATF Rules Apply-You may use this 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.