I'm not sure if you mean the full size(regular model M&P 9mm/.357/.40S&W) or the larger Pro Series(like the big .45acp M&P but in .40 or 9mm).
The only common brand I'm aware of that markets a Pro model M&P series holster is Blade-tech;
www.blade-tech.com . Other holsters or custom rigs in polymer/Kydex or leather(bull horsehide rhino shark etc) may be had at a higher price/$$$.
Check Kramer Gun Leather, Galco, Alessi, COM Holsters;
www.comholsters.com Safariland
www.safariland.com www.mitchrosen.com www.highnoonholsters.com www.lawmanleathergoods.com www.kirkpatrickleather.com
Mernickle Holsters El Paso Saddlery
Clyde