Rugged Suppressors R3 Flash Mitigation System, Flash Hider, For SR25, 3/4x24 Thread Pitch, Matte Finish, Black FH015 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.