Ar-15/M16 Button Rifled Barrels - Ar-15 M16 Barrel 20 Rifle Length 5.56mm

The United States military has trusted FN America to produce the guns used by our troops in combat zones across the world, and now, you can pick up the same U.S.-made M16 barrels used by our troops for your own AR-15. Each FN AR-15 BB M16 barrel is machined from chrome-moly vanadium steel sourced right here in the United States. After button-rifling, each FN AR-15 BB M16 barrel gets a chrome-lined bore and chamber that prevents corrosion and also minimizes heat erosion. This helps to extend the