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 rugged suppressors' snag-free toothless dual taper locking system making it compatible with the radiant762 surge 7.62 razor 7.62 and micro30.Finish: BlackModel: R3Thread Pattern: M18X1.5