Faxon Gunner Duty 5.56 NATO 12.5in Nitride AR-15 Barrel

Description

The Faxon Gunner Duty Series barrel is a 12.5-inch AR-15 barrel built to balance durability and maneuverability. It is chambered for 5.56 NATO / .223 Remington and uses a Gunner contour that blends Government and Pencil profiles for reduced weight without sacrificing strength. Manufactured and stress relieved with a button-rifled bore, the barrel is finished in a black nitride / black-matte surface and is intended for use in training, competition, and general-purpose AR-15 applications.

Key Specifications

• The cartridge is .223 Rem / 5.56 NATO.
• The barrel length is 12.5 inches.
• The contour is the Gunner profile which blends Gov’t and Pencil characteristics.
• The rate of twist is 1:8.
• The barrel material is 4150 CMV.
• The finish is Black Nitride with a black-matte appearance.
• The gas system length is Mid-Length.
• The muzzle threads are 1/2-28.
• The rifling method is Button Rifled.
• The barrel weight is 1.22 lbs.

Delivering a compact, purpose-built option for AR-15 builds, the Gunner Duty barrel combines a weight-conscious contour with industry-standard materials and finishing processes to support reliable function and consistent accuracy. The mid-length gas system and 1:8 twist make it compatible with a wide range of 5.56/.223 loads, while the nitride treatment enhances surface hardness and corrosion resistance. For builders and shooters seeking a short, robust barrel for training, competition, or versatile field use, this Faxon Gunner Duty barrel presents a practical, well-documented choice.