Faxon Firearms Duty Series AR15 Barrel 300BLK 1:8 Twist 4150 Nitride - 7.5" | Gunner Profile | Pistol Length

Overview

The Faxon Firearms Duty Series AR-15 barrel is chambered in .300 AAC Blackout and features a 7.5-inch length with a 1:8 twist rate. Machined entirely in-house from certified 4150 steel, it is treated with a durable QPQ nitride finish for enhanced longevity and corrosion resistance. Every barrel undergoes magnetic particle inspection (MPI) and air-gauge testing to ensure precise sub-surface integrity and superior accuracy. The barrel is built with Faxon's proprietary Gunner profile, which blends the durability of a government contour with the weight savings and maneuverability of a pencil profile to reduce shooter fatigue. Additional specifications include a pistol-length gas port, a .750-inch gas block seat, an M4 barrel extension, an 11-degree target crown, and standard muzzle threading.

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