The Faxon Firearms Duty Series AR15 Barrel in 5.56 NATO with a 1:8 twist and 16" length delivers precision performance in a rugged, nitride-finished 4150 steel build, designed for AR-15 compatibility and reliable mid-length gas operation. This Gunner profile barrel combines a Black Nitride finish for enhanced wear resistance with a precision-made target crown, ensuring consistent muzzle velocity and tight group potential across a variety of 5.56x45mm NATO loads. Built around a 16" mid-length configuration, it offers a balanced recoil impulse and smoother cycling, making it well-suited for range work, duty training, and field scenarios where dependable accuracy matters. The 1:8 twist stabilizes a wide range of standard and heavier 55 to 77 grain projectiles, allowing shooters to optimize load selection without sacrificing performance. Crafted from durable 4150 steel and engineered for AR-15 platforms, this barrel merges rugged construction with practical accuracy, enabling shooters to push longer strings of fire with confidence. Whether youre outfitting a tactical, competition, or duty-oriented build, Faxon Firearms Gunner profile provides a proven combination of durability, precision, and versatility.