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: 1/2×28 Threaded
- Weight: 19 oz
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