Originally Posted by lbwar15
Can you convert an M&P .40 into .357 sig and 9mm quickly and easily like you can a glock 22 or 23?
I have a M&P .40 Full size. The Magazines fit .40S&W and .357SIG. I bought a barrel from S&W for 75.00. It drops directly in, and uses the same recoil spring. Two guns in one
You could also look at aftermarket barrels from Storm Lake. They come in stainless, can be ported, or threaded, depending on your application.