B&T Two-chamber Compensator for Rotex-III/V/VA™ 5/8x24 UNEF cal. .308 Win is a high-quality steel muzzle brake dedicated to rifles chambered in .308 Win (7.62×51 mm NATO) with a 5/8″×24 UNEF thread (standard in AR-10, SCAR-H, G3/HK91, and many others). It effectively reduces recoil and muzzle rise, improving weapon control during rapid fire, and additionally features a QD mount for quick attachment of Rotex-III/V/VA™ series suppressors (including NATO) without tools. It is a solid, tactical accessory weighing 90 g.