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  1. FN509
    First time RMR purchaser. Tried to find info before buying a Holosun holo site that was on limited time sale. The online retail seller said it should work. Emailed Holosun about the optic and gun match to see if it would work together. They responded back to me with the wrong optic spec for a...
  2. FN509
    Has anyone mounted a 507C V2 on a 509 MRD? I followed the directions for the RMR plates/screws, but the screw heads are a bit too big and started scratching the finish. I tried the screws that came with the 507C, but they're too short and only about 2 threads or so make it through.
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