The Advanced Armament Corp BLACKOUT Flash Hider is designed to provide you with superior flash suppression while giving you a mounting point for the new SR-7 suppressor. The BLACKOUT is made from a high strength corrosion resistant aerospace alloy. The alloy is then treated with an ultra-hard SCARmor finish which provides the highest level of durability. - Specifications and features: - Advanced Armament Corp BRAKEOUT 90T Flash Hider 104032 - 7.62mm caliber barrels threaded in 5/8-24 TPI - SCARmor finish - Ratchet mount for AAC sound suppressors - Black