SureFire WARCOMP Flash Hider 5.56 - 1/2x28 - SFWARCOMP-556-1-2-28 - $129.95 (Add To Cart) The revolutionary SureFire WARCOMP-556-1/2-28 flash hider, which fits M4 / M16 weapons and variants with ½-28 muzzle threads, is the world’s most shootable flash hider. Its patent-pending design provides three