The Ballistic Advantage 5.56x45 NATO barrel is a robust and reliable choice for your AR-15 build. Weighing in at 2.188 lbs this 16-inch heavy contour barrel features a mid-length gas system and a 1-7 twist rate optimized for stabilizing a wide range of bullet weights. Its chrome-lined interior enhances durability and corrosion resistance while the sleek black finish adds a tactical aesthetic. The barrel is threaded with 1/2-28 muzzle threads allowing for easy attachment of various muzzle devices making it a versatile and high-performance option for any shooting enthusiast.