Try Dr. Leo Volfson at Torrey Pines Logic. He has made custom magnifiers for me and they were excellent and the price pretty fair. He can make an arm that will clip on to the picatinny rail on the side of the Apollo. They gives a very solid mount that will not move and that is critical to have an accurate magnifier put on an existing thermal. He made some 3X magnifiers for my PTS 233's. Turns mini mouse into mighty mouse with a new 4.5 native magnification.
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