I’m not @Wise_A, but from my perspective none of the current crop of optics that use the RMSc footprint are acceptable *to me* for a serious pistol. I have a 26.5 at Battlewerx right now being direct milled for a RMRcc, and a 43 will follow that before much longer.
What we need is an Aimpoint or Trijicon RDS made to the RMSc format. I suspect we will get there eventually.