I bought one for mounting a Delatpoint Pro on my G22 just to make sure it was a system that worked for me. The Leupold adapter plate plate worked flawless and allowed me to see how well the optic worked for me. I eventually ended up milling the slide down for a better duty holster fit, but as far as the Leupold plate goes, it was flawless in function and much more affordable than the milling was.