However, in checking some forums, I am observing the front sight to the CSX ought to be compatible with any M&P model. The rear, based on the S&W forums, are proprietary. I've shot a number of smiths, but I owned a dan wesson in .357, and became quite biased toward https://smithandwessonairweight58024.bloginder.com/17726064/how-much-you-need-to-expect-you-ll-pay-for-a-good-smith-and-wesson-store-login