For those that haven't seen this yet. S&W is releasing the new M&P Pro Series C.O.R.E. Models. Looks like they will available in 3 flavors M&P40L CORE (178059), M&P40 CORE (178060) and M&P9 CORE (178061).
"3-Interchangeable Newly Enhanced Textured Palmswell Grip Sizes
Slide cut to accept the following optics – Trijicon RMR, Leupold Delta Point, Jpoint, Doctor, C-More STS, Insight MRDS
Based on the popular Pro Series line of competition ready firearms, the new M&P C.O.R.E (Competition Optics Ready Equipment) models offer consumers a specialized platform for adding accessory optics to their personal handguns. Engineered to accept six popular styles of competition based optics, the M&P C.O.R.E models are easily adapted to meet any demand. "