Patent-pending design provides more than a 99% reduction in flash; Multiple bearing surfaces provide superior suppressor alignment and prevent ringing of tines inside suppressor; Made from U.S. mill-certified, heat-treated stainless steel that is highly resistant to corrosion and gas/particle erosion; High-precision single-point cut barrel threads create optimum thread interface; Inspected for all critical dimensions including concentricity and alignment; DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use; Serves as rock-solid mounting adapter for SureFire SOCOM Series sound suppressors; Labyrinth seals mitigate gas leak from suppressor lock ring; Installation requires no permanent modifications to most weapons; Mounts all SureFire SOCOM Series sound suppressors