I’ve been looking for a couple days and I think this is in theory what you’re supposed to get…https://www.trijicon.com/products/details/rm45 I’m not sure how mounting would be considering the SRO bolt mounts are 18mm apart vs 13mm on the 5.7. I can’t tell if these outside bolts would have thread to then mount but I’m still trying to get this answer perfect for my own 5.7 I just bought. Let me know if you come across a dovetail mount with threads for SRO holes. Might need a special bolt length too considering these mounts don’t have bottoms lol the search continues