Yes, the RMR should have firm/audible clicks when adjusting the windage/elevation.
My SRO (samo with MRO) is said to have 1 MOA "clicks." There are no clicks, just markings, and the markings are nothing like 1 moa. Maybe 1.8 moa. I just checked three more of them (I have four, only one in use) and maybe on one I can, using my imagination, "feel" tiny clicks, seemingly two per division, so that would be 2 moa per marking. I don't trust that. Poor at the price point. Also almost impossible to turn off. And the adjustment slots . . . are wicked, wide slots, curved bottoms, like for a coin, but way too small. Nothing really fits, have wonder what Trijicon was thinking.