Flash hider? Muzzle brake? The proprietary design of SureFire's 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.Features: Patent-pending design provides more than 98% flash elimination; virtually eliminates muzzle rise Serves as a rock-solid mounting adapter for SureFire SOCOM suppressors Multiple bearing surfaces provide suppressor alignment and prevent tines from ringing inside suppressor WARCOMP-556-1/2-28 can be timed for right- or left-handed shooters with the option of neutral timing Precision machined from U.S. mill-certified heat-treated stainless steel bar stock High-precision single-point cut barrel threads for optimum thread interface Individually inspected for all critical dimensions including concentricity and alignment DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use Installation requires no permanent modifications to weapon Durable construction delivers a long service life Proudly designed and manufactured in the U.S.A.