The Tiger Rock Inc. BRPIS-8P 5.56 NATO 8.5" barrel is engineered for precision and robust performance. Crafted in the USA, this specialized barrel offers exceptional reliability, making it a prime choice for both tactical use and recreational shooting. Compact 8.5-inch length for enhanced maneuverability 1:7 twist rate for improved stabilization of various bullet weights Pistol gas system for consistent cycling and reduced recoil Parkerized finish for corrosion resistance and sleek look Seamless compatibility with AR platforms for easy installation Elevate your shooting experience with unparalleled craftsmanship and performance.