While not a a Holosun fan, I always said an optic that mounted directly to the MOS cut that was low profile, was what I wanted. I had high hopes for the Dr. Optic "Noblex" but those didn't pan out. I might still end up with a 26.5 MOS .... and an SCS. That looks pretty awesome. Very slick little setup.
My milled G26.5/RMR 07 has mostly displaced my J-frame for the times I can't get away with the G19, but can still wear a cover shirt. The "ear" of the RMR is the most likely point to print on that gun, so a smaller optic might be an answer.
I am picking mine up tomorrow, and will probably put an RMR on it for now. I was thinking of an EPS Carry, or even a 509T I have laying about, but finding plates for either now is difficult. I have a CHPWS for the 509, but it is one of the ones with a distinct bit of “wobble” when placed on a flat surface.
For me, the 26 MOS with an enclosed optic and the Mayhem comp is about as good of an off duty/low viz set up as I could ask for, with the next closest being a similarly set up G19.
Polite Professional
The DPP EPS/Carry plate is available on Amazon:
https://www.amazon.com/gp/aw/d/B09PF...b_b_asin_title
Likes pretty much everything in every caliber.