REPLACEMENT MOUNTING SCREW KIT FOR GLOCK MOS SLIDES: TRIJICON RMR REPLACEMENT SCREWS FOR FACTORY GLOCK MOS (MODULAR OPTIC SYSTEM) SLIDES FLAT SOCKET CAP SCREWS INCLUDES SCREWS FOR MOUNTING FACTORY GLOCK ADAPTER PLATES, COVER PLATE, AND TRIJICON RMR TO ADAPTER PLATE #2/#6 (1) PAIR 6-32 OVERALL LENGTH RMR MOUNTING SCREWS (1) PAIR M3 x 0.5 (LONG) OVERALL LENGTH MOS COVER PLATE SCREWS (1) PAIR M3 x 0.5 (SHORT) OVERALL LENGTH MOS ADAPTER PLATE SCREWS