C&H Precision V2 STEEL MIL/LEO Adapter Base Plate converts Glock MOS pistol platforms (models 17, 19, 20, 21, 22, 23, 34, 35, 40, 41, 45, and 47) to accept Trijicon RMR/SRO/RCR and Holosun 407C/507C/508T/507Comp footprint red dot optics. Machined from steel with a black zinc finish, this red dot optic mount provides a heavy-duty, low-profile interface for secure optic mounting. The package includes the optic plate and essential mounting hardware. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.