I still see plenty of full-size M&Ps on their website. Like, more than 50... Are y'all sure you're internetting right?
Like you, I just went to the S&W site and had a hard time finding information about the basic full-size M&P pistols. Here's the one I did find:
https://www.smith-wesson.com/firearms/mp-9-m20-threaded-barrel
Of course, you may not want the threaded barrel and high profile sights.
The M&P is a superb gun; I shot a bone stock M&P 1.0 in competition for some years before moving over to Glock, and I'd pick up and shoot another M&P in a heartbeat.
Mike