Rugged Suppressors R3 Flash Mitigation System Flash Hider 5.56x45mm NATO 1/2x28 Black RH001. 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(TM) making it compatible with our Radiant762" Surge 7.62" Razor 7.62 and Micro30. At just 2.9oz and 1.9" long the R3 Flash Mitigation System (5.56) is over 30percent lighter and 26percent shorter than competing 5.56 designs. The R3's patent pending design features world class flash reduction zero ring and a smooth snag-free toothless Dual Taper Locking System. The R3 Flash Mitigation System is compatible with all of our rifle and multi-caliber suppressors. Features of Rugged Suppressors Flash Hider: Snag free Package Contents: Rugged Suppressors Flash Hider Rugged Suppressors RSFH001: R3 1/2 X 28 Flash Hider Black