I wish S&W would make it so that the same magazines would fit in all their polymer line, by caliber of course. That is, I wish you could use the same 9mm magazines in the Sigma, SD, and M&P 9mm pistols. The Shield is different by necessity, of course, since it is a "single stack" (sort of) while the others are double stack.
I realize that SD and Sigmas can use the same caliber magazines, although the base plates are different...but you cannot use them in the M&Ps, nor vice versa.
I realize that SD and Sigmas can use the same caliber magazines, although the base plates are different...but you cannot use them in the M&Ps, nor vice versa.