The Criterion Barrels M118LR SBN BARREL in .308 Win delivers a rifle-length 20" AR .308 platform barrel with a precise 1-11 twist and a compact 2.9 lb weight, finished in black for durable concealed handling. This AR 308 M118LR barrel features a Hybrid contour designed to balance stiffness and heat management, enabling repeatable accuracy across extended sessions, while the 5/8-24 muzzle threads provide versatile compatibility with a wide range of suppressors and muzzle devices. Built to support long-range performance, the rifle-length gas system contributes reliable cycling and predictable muzzle rise, making it an excellent choice for precision rifle builds, varmint and predator hunting, or duty-style applications that require consistent groupings from a flexible platform. The barrel is chambered in .308 Winchester, optimizing ballistic efficiency and energy delivery at distance, and its black finish complements high-visibility optics and rugged field conditions. Compatible with AR .308 receivers, this barrel pair-reduces harmonics and fosters tight shot-to-shot consistency, allowing shooters to exploit the proven M118LR performance with a robust, clean-running profile tailored for precision shooting and hunting scenarios.