Faxon Gunner Duty 5.56 NATO 11.5 in 1:8 Nitride Barrel

The Faxon Firearms Gunner Duty Series barrel is an 11.5 inch AR-15 barrel chambered for 5.56 NATO (.223 Rem). It pairs a Big Gunner contour that blends Government and Pencil profiles for a balance of durability and weight savings with a 1:8 twist rate suited to a wide range of bullet weights. The barrel is button-rifled, manufactured from 4150 CMV, stress relieved and finished in a nitride process for corrosion resistance and wear life. A mid-length gas system and a 1/2×28 threaded muzzle provide reliable gas timing and accessory compatibility for compact and suppressed builds.

Key Specifications

• The chamber is built for 5.56 NATO (.223 Rem).
• The barrel measures 11.5 inches.
• The twist rate is 1:8.
• The contour is the Big Gunner (Gunner) profile.
• The steel material is 4150 CMV.
• The finish is Black Nitride.
• The gas system length is Mid-Length.
• The muzzle is threaded 1/2×28.
• The rifling method is Button Rifled.
• The listed weight is approximately 1.3 lbs.

Engineered to deliver a lightweight, accurate foundation for compact AR builds, the Faxon Gunner Duty 11.5 in barrel balances maneuverability with the durability needed for extended use. Its combination of modern manufacturing, nitride finish and mid-length gas geometry makes it a practical choice for shooters seeking consistent performance in a short-barrel platform.