The 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 our snag-free, toothless Dual Taper Locking System making it compatible with all of the Rugged Suppressors rifle and multi-caliber suppressors. Available Thread Pitch Options:5/8x243/4x249/16x24M15x1M18x1.59/16x24LHM18x11/2x28SR25 3/4x24 Rugged Suppressors M18x1 R3 Flash Mitigation System FH012