The MRDS Top Ring for the FAST™ LPVO attaches any number of micro red dot sights directly to the top of the LPVO scope mount (FAST™ LPVO sold separately). When used with a FAST™ Optic Adapter Plate (sold separately), the micro red dot will sit at the 12 o’clock position and most (optic heights vary) will clear the scope.
Each FAST™ Optic Adapter Plate footprint will accept any mini red dot with that same footprint pattern.