Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. This 5.56 chambered 12.3 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. These performance series barrels feature a Nickel Boron Coated Extended M4 Feed Ramp Extension. Hanson barrels are not designed to work with aftermarket piston kits.
Specifications:
- Length: 12.3"
- Material: 4150 Chrome Moly Vanadium
- Profile: Hanson
- Finish: QPQ Corrosion Resistant
- Gas System Length: Carbine
- Gas Block Journal: .750"
- Twist Rate: 1-7
- Muzzle: Threaded 1/2x28
- Weight: 22oz
- Other: HP and MPI tested
