Flash hider? Muzzle brake? The proprietary design of SureFires WARCOMP flash hiders/suppressor adapters provides the best attributes of both devices. WARCOMPs deliver superior flash reduction and significantly reduce muzzle rise, helping to conceal your location, preserve your dark-adapted vision and keep you on target for faster follow-up shots. They effectively eliminate more than 98% of all muzzle flash, even on short-barreled rifles, and their port direction can be optimized for virtually any shooting style. Precision machined from U.S. mill-certified, heat-treated stainless steel bar stock, every WARCOMP includes high-precision single-point cut barrel threads for optimum thread interface. DLC coating provides maximum protection under harsh environmental conditions and facilitates cleaning even after extreme use. Surefire WARCOMPs are the best suppressor adapters in the world. Period.