Rugged Suppressors R3 Flash Mitigation System, Flash Hider, M18x1 Thread Pitch, 7.62mm, Matte Finish, Black FH012 Rugged's R3 Flash Hider 7.62 features variable fluted prongs" which yield zero ring and world-class flash reduction in a light and compact size. The R3 Flash Mitigation System utilizes the snag-free" toothless Dual Taper Locking System making it compatible with all of Rugged's rifle and multi-caliber suppressors.