The FN® M16A2 Style 14.7" Carbine-Length Gas 5.56 NATO Barrel is a performance-enhanced AR-15 rifle barrel, engineered to deliver superior quality and consistency in any shooting application. Featuring high-strength Chrome-Moly Vanadium steel construction, this button-rifled rifle barrel comes equipped with a black Manganese Phosphate finish for superior protection against corrosion and oxidation. The chrome-lined bore and chamber offer additional corrosion resistance while simultaneously protecting against heat erosion for improved barrel life and smooth chambering and extraction. This barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of micro-stresses or flaws for improved strength and consistent performance. Better yet, this AR-15 rifle barrel boasts 1/2x28 threads for quick installation of your favorite muzzle brakes, flash hiders, and other muzzle devices.