Brownells Brn-4 5.56x45 14.5 Medium Chrome Lined Barrel Phosphate

The Brownells BRN-4 5.56x45 14.5'' Medium Chrome Lined Barrell Phosphate delivers a reliable, performance-focused upgrade for AR-15 style rifles, offering a 14.5-inch medium-contour barrel finished in black phosphate with a chrome-lined bore for extended durability and easier cleaning in varied conditions. Chambered in 5.56x45mm NATO and equipped with a 1-7 twist, this barrel supports a wide range of practical mid-range ammunition and stabilizes a variety of projectiles to deliver consistent accuracy. The 1/2-28 muzzle threads accommodate common devices and accessories, making it a versatile choice for builders seeking a durable, ready-to-install component. Chrome lining helps resist corrosion and wear, providing a smoother bore for improved long-term performance, while the black finish reinforces a clean, low-reflection profile suitable for hunting, range, and field use. With its chrome-lined construction and phosphate treatment, the BRN-4 barrel pairs well with premium components to enhance reliability during repeated firing and in demanding environments. This barrel is a solid option for enthusiasts aiming to optimize accuracy, reliability, and long-term service life in a purpose-built rifle build.