B&T 2-chamber compensator for Rotex-III/V/VA™ is a steel muzzle brake in caliber .223 Rem (5.56×45 mm) with a 1/2″×28 UNEF thread, mainly dedicated to AR-15/M4 rifles and similar NATO standard firearms. It effectively reduces recoil and muzzle rise, improving control during rapid fire, and additionally features a QD interface for quick mounting of Rotex-III/V/VA™ series suppressors without tools. It weighs about 90 g.