The Faxon Firearms Duty Series AR15 Barrel in 5.56 NATO delivers precision and reliability in a 16" mid-length configuration with a SOCOM profile, crafted from 4150 steel and finished in durable QPQ black nitride for enhanced wear resistance and corrosion protection. This button-rifled 1:8" twist barrel is designed to stabilize a broad range of 5.56x45mm NATO projectiles, delivering consistent accuracy from the bench to the field. Built to fit AR15/M16 platforms, the 16" length balances velocity and maneuverability for mid-range engagements, while the Target Crown ensures clean, uniform bullet release for improved group consistency. The Duty Series embodies rugged, practical performance, pairing a reliable profile with a clean, low-profile appearance suitable for duty, sport, or varmint applications. Whether upgrading a classic carbine or assembling a ready-to-tack-on rifle, this barrel's combination of 4150 steel construction, precise button rifling, and hardened nitride finish translates to long-term durability under demanding shooting schedules. Choose Faxon Firearms for a trusted, purpose-built barrel that supports precision shooting and dependable operation across diverse environments.