I think if you can find any M&P in 9 mm now, you are one lucky duck.
I just lucked into one last week and ws totally shocked it was available and bought it immediately.
It was the "full size 4-1/4" , no thumb safety and no magazine disconnect. Exactly what I wanted.
In a few weeks I will drop a dime on an Apex trigger for it and a set of Trijicons sights.