This 5.56 chambered 11.5 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.
- SKU: BABL556023M
- Length: 11.5"
- Material: 4150 Chrome Moly Vanadium
- Profile: Government
- Finish: QPQ Corrosion Resistant
- Twist Rate: 1:7 inches
- Gas System Length: Carbine
- Gas Block Journal: .750"
- Muzzle: 1/2x28 Threaded
- Weight: 20.5oz
Gas Block Dimple Service: If you're planning on using a set screw style of gas block with this barrel, we highly recommend choosing the dimple service. The dimple ensures that a set screw gas block is perfectly aligned with the gas port and cannot rotate or slide out of position under extreme use.
Feed Ramp Polishing Service: Same as the Feed Ramp Polishing service we provide separately, this can help smooth out feeding and possibly prevent some feeding issues. This service is best done with the upper receiver in hand to match the feed ramps in the barrel to the upper, but can be done with just the barrel.