Brownells Brn-4 5.56x45 Nato 14.5 in Heavy Chrome Lined Barrel Phosphate

The Brownells BRN-4 5.56x45 NATO 14.5'' Heavy Chrome Lined Barrel Phosphate delivers a robust, chrome-lined solution for AR-style rifle builds, combining a Black finish with a heavy contour and a 14.5-inch length to balance accuracy, controllability, and platform versatility for serious shooters. Featuring a 1-7 twist and 1/2-28 muzzle threads, this barrel is optimized for reliable stabilization of common 55-77 grain projectiles while providing easy compatibility with a wide range of 5.56x45mm NATO loads and gas systems. Designed as a BRN-4 stripped barrel, it supports straightforward installation for elevated performance in tactical, competitive, or recreational settings, enabling smoother handling and predictable chamber pressures that improve shot-to-shot consistency. The chrome lining enhances corrosion resistance and longevity in demanding environments, making it a practical choice for extended field use, maintenance cycles, and repeated firing sessions. This barrel's tailored specs—the 14.5'' length, heavy contour, and precise threading—make it well-suited for builds that seek a balanced, rapid-handling platform with improved heat dissipation and durability. Whether upgrading an existing rifle or assembling a new configuration, the BRN-4 barrel from Brownells provides a durable foundation for reliable, accurate performance in 5.56x45mm NATO rifles.