Forward Controls Design Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate Black OPF-G43X/48 RMR. G43x and G48 MOS slides are designed for direct mounting of the Shield RMSc sight. Trijicon's RMR is longer and wider and requires an adapter plate which also necessarily raises the mounting surface in order to mount an RMR. With the OPF-G43x/48 RMR we didn't merely raise the mounting surface to provide a platform for the RMR. As RMR is longer than the G43X/48 MOS cut the sight overhangs on the slide. We provide not only lugs but also a front recoil fence that together with the recoil lugs holds the sight immobile before the sight to plate screws are installed and torqued to specified value of 12 to 13 in/lb. Specifications for Forward Controls Design Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate: Manufacturer: Forward Controls Design Red Dot Sights-Footprint: RMR Optic Cut: Trijicon RCR Trijicon RMR Fabric/Material: 4140 Steel Color: Black Gun Model: Glock 48 MOS Glock 43X Weight: 1.21 oz Gun Make: Glock Package Contents: Forward Controls Design Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate What firearm models does the manufacturer say Forward Controls Design Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate is compatible with? The manufacturer suggests that Forward Controls Design Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate is compatible with Glock 43X Glock 48 MOSForward Controls Design OPF-G43X/48 RMR: Trijicon RMR/RCR Glock 43X and 48 MOS Adapter Plate Black