Even so, in examining some forums, I'm observing the entrance sight within the CSX need to be compatible with any M&P model. The rear, in accordance with the S&W forums, are proprietary. So far as I'm involved, ALL of these plastic-amazing wonder nine's are unsightly. This just one doesn't appear https://smith-and-wesson-stock03691.thekatyblog.com/15197250/getting-my-smith-and-wesson-drink-recipe-to-work