Home / Pouches & Accessories / HOLOSUN / 407/507K Adapter for RMR 407/507K Adapter for RMR Categories: HOLOSUN, Pouches & Accessories Tags: accessories, HOLOSUN Product ID: 6190 Description Description 407/507K Adapter for RMR – OVERVIEW – Related products Tenebraex ZCO Objektiv 50-56 top Waterproof Monocular Telescope $80000 HE407K – GR X2 AEMS (Red/Green)