GLOCK 43X MOS to Holosun 507k Adapter Plate
This is the optics adapter plate for the GLOCK 43X MOS and 48 MOS, which comes with an RMSc-spec optic footprint. This plate is required to mount a Holosun 507k / 407k to the factory MOS 43x and 48 without having to modify the existing recoil posts on the slide. Plate is .045″ thick. It’s CNC machined from 6061 and Type III black hard anodized.