The revolutionary SureFire WARCOMP-556-1/2-28 flash hider, which fits M4/M16 weapons and variants with 1/2-28 muzzle threads, is the world's most shootable flash hider. Its patent-pending design provides three valuable functions. Patent-pending design provides over 99% flash elimination Virtually eliminates muzzle rise Serves as rock-solid mounting adapter for SureFire SOCOM suppressors Multiple bearing surfaces provide suppressor alignment and prevent tines from ringing inside suppressor Precision machined from US 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