I had a Glock 22 Safariland 5186 holster just collecting dust so I decided to investigate.. Low and behold the M&P fits in the holster like it was made for it. Everything fits perfectly except for the ambi slide stop. I took out the Dremel and made a notch for it and also shortened the length of the holster by a smidge. Done. I adjusted the tension so it stays in like it's suppose to. Doesn't shake loose but still has a smooth draw. Didn't cost me anything but a little sweat working in my garage. I'm going to use it at a match on Saturday. I'm glad I didn't run out and order a holster for it when I had something already at the house.