C&H Precision Weapons CHP Adapter Plate, Converts the RMR Footprint to Holosun 407K/507K, Anodized Finish, Black, Includes Mounting Hardware RMR-HOLOk Model: RMR to Holosun K Series Finish/Color: Anodized Fit: Trijicon RMR Type: Mount Manufacturer: C&H Precision Weapons Model: RMR to Holosun K Series Mfg Number: RMR-HOLOk