This 5.56 chambered 12.5 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.
- Length: 12.5″
- Material: 4150 Chrome Moly Vanadium.
- Profile: Government.
- Finish: QPQ Corrosion Resistant.
- Twist Rate: 1:7 inches.
- Gas System Length: Carbine.
- Gas Block Journal: 0.750″.
- Muzzle: 1/2×28 Threaded.
- Weight: 22.0 oz.
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.