Nice enough sight, but.... - Cyelee Optics CAT0 1x22x16mm Reflex Red Dot Sight

So I have a Springfield armory Hellcat OSP with an RMSC footprint. This indicated that it was an RMSC as well. The sight seem to be of a good build, but it absolutely did not fit! The projections on the slide did not line up. In reading online, some people suggested taking a small file to the top of my slide. No, I'm not going to file the top of my firearm! I had high expectations for this sight because of the features but it did not work out.