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 our radiant762 surge 7.62 razor 7.62 and micro30.For use with the knights armament sr25.Finish: BlackModel: R3Thread Pattern: 3/4"-24 tpi