Good info HMNAz, I had been looking at one of those. you just saved me $59 + shipping. Thanks!The mount Midway sells did not work for me. They advertise it as suitable for all full-sized USPs. The Aimtech package (APM-25) says it is for the USP 9mm - they don't mention other calibers. I tried it on my .40 and .45 USPs - no-go. Binds the slide at the bottom 'lip.'