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RDF Mounting to scope rings help needed

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I have a refractor in a set of CNC rings which have screw holes already present, I think these are probably for mounting a guide scope however I'd like to mount a red dot finder instead to complement the 10x50 finder.  Does anyone know what finder mounting bracket I could get that would fit these holes, or what I could do to make one fit?  It needs to be low profile so that the scope will fit in its case, I will remove the finder when storing the scope so a quick release type is what I'm after, something like this https://www.firstlightoptics.com/finders/finder-mounting-shoe.html but preferably in black.

Here's the scope:


I want to avoid using a single screw as this seems like it could easily lose alignment.  Also not sure what size screws I will need, I have some but haven't tried them yet (and don't have a finder mounting bracket to test with).

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TS  do the following product. I use it to put a finder on top of the CNC rings as this one has a flat base. Depending on where you put it, it will cover two mounting holes.

The holes are probably metric, mine are on William Optics rings, and they are M6.





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