Works well enough - Live Free Armory LF19 Chamfered Series Pistol Slide w/ No RMR Optic Cut for Glock 19

Obviously you shouldn't expect a Gucci experience from this, however it works and is decent value. The five star from me represents the fact that it works and didn't set me back any significant amount. I got the normal iron sight cut as I cant use a red dot with astigmatism. I do not know how the tolerances on the RMR cut are.