SureFire SFCT-556-1/2-28 SOCOM .223/5.56 Closed-Tine Flash Hider 1/2x28 ThreadsSureFires SFCT-556 Closed Tine Flash Hider is highly adept as a standalone muzzle device, but also serves as a solid mounting adapter for SureFires line of SOCOM suppressors. The SFCT-556 takes its design from traditional birdcage flash hiders, and features wrench flats for easy installation. Like all SureFire muzzle devices, the SFCT-556 is precisely machined using CNC technology to ensure perfect alignment between the suppressor and the bore of the weapon. Features of the SureFire SFCT-556 Closed Tine Flash Hider: Mounting adapter for SureFire SOCOM suppressors Heat-treated stainless steel construction Considerably reduces visible muzzle flash 1/2 x 28 TPI SureFire SOCOM .223/5.56 Closed-Tine Flash Hider 1/2x28 Threads SFCT-556-1/2-28