As I reviewed the options in Brownell's and other sources, I did not see a QD mount for the CZ 527, which was the only 16mm ring size. I needed to end up with a 15mm width to match the dovetails on the funk rib. It would be great to have the QD option--and maybe it could be added to the CZ ring set. All I have to do is carry along a stubby screwdriver--the slots are coarse on the rings. Let us know if you find a QD, though...Steve