OPF-G, RMR is designed for Glock's MOS and Trijicon RMR and SRO. If you use a Holosun and the long set of screws with OPF-G, RMR, you will risk damaging the plate. Holosun sights have 90 degree countersink screw holes, while RMR and SRO use 82 degree countersink. In addition, the supplied RMR sight to plate screws (5-32 x 3/8) are longer than what Holosun includes. Do not use our sight to plate screws with Holosun sights.
