Forward Controls Design RMSc Adaptor Plate Glock MOS OPF-G Black RMSc. Due to the wide variety of RMSc compatible sights available we do not supply the sight to plate screws that are often unique to and ship with the sights OPF-G RMSc is shipped with the plate to slide M3 0.5x6mm screws only. RMSc compatible sights usually ship with different lengths of M4 0.7mm screws. The shorter set of screws are usually the correct length. To confirm the correct length do not install OPF-G RMSc on the slide yet but install the sight on the plate with the shorter screws first the tip of the screw should not protrude beyond the underside of the plate. Specifications for Forward Controls Design RMSc Adaptor Plate: Manufacturer: Forward Controls Design Red Dot Sights-Footprint: RMSc Fabric/Material: 4140 Steel Color: Black Finish: Nitride Gun Make: Glock Package Contents: Forward Controls Design RMSc Adaptor Plate Forward Controls Design OPF-G RMSc: RMSc Adaptor Plate Glock MOS Black