The QD rings on that rifle look like they could be $120 Talley's, which are listed as fitting the CZ550's dovetails.
http://www.talleymanufacturing.com/c...controller.cgi
IDK if they're larger, or if they fit a RF CZ's 11mm dovetails, which may be narrower than a 550's.
IMO, the use of the Talley's would depend both upon a compatible dovetail size and on hot flat the top of the RF CZ's receiver is between the dovetail cuts - so as to accommodate the flat underside of the Talley ringset.
IOW, if the Talley dovetail/clamping size is compatible with your rimfire CZ, AND the CZ's receiver is flat enough to accept the Talley's, allowing them to clamp, you might be good to go.
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