Yes, those should be compatible.
You should probably ask the company. If it has the 4 raised posts that the rmsc sits on, I don't think the holosun will fit. If it's a flat surface with only the 2 screw holes in the optic cut, it should work. If you check out holosun videos from shot show this year, they say that some slides that have already been cut for the rmsc might have to have some milling done before the holosun will fit. I believe the romeo zero is the same as the holosun. I'm pretty sure they said that the holosun k models would fit on the 365xl's from the factory. Your best bet would be to call the company because all the pictures have the covers over the cuts, so you can't see if it has those 4 posts or not.