This 5.56 chambered 10.5 inch 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. 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.
- Length: 10.5"
- Material: 4150 Chrome Moly Vanadium
- Profile: Government
- Finish: QPQ Corrosion Resistant
- Gas System Length: Carbine
- Gas Block Journal: .750"
- Twist Rate: 1:7 inches
- Muzzle: 1/2x28 Threaded
- Weight: 19 oz
