Introducing our high performance 5.56 chambered 13.9 inches performance series barrel, meticulously crafted from 4150 chrome moly vanadium steel and enhanced with a QPQ corrosion-resistant finish for unmatched durability. Elevate your shooting experience with our cutting edge performance series barrels, boasting a nickel boron coated extended M4 feed ramp extension that ensures smooth and reliable feeding. Get ready to take your firearms to the next level with this precision engineered barrel, designed for peak performance and built to exceed your expectations.