I just joined the forum and this is my first post. I currently have 2 Smiths. I have an M&P 9 (bought because that's what my department issues), and my new toy, a police issue 4566 bought used for $375. I absolutely LOVE my new 4566. I am looking for mags for it. The factory mags are $40+. I can get ProMags for about $25. Anyone have any advice or reviews of the ProMags for the .45 Smiths?