Ballistic Advantage Modern Barrel 556NATO, 10.5″, 1:7 Twist Government Profile

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.

Features :

* ,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