That is a nice one. And not too common at all as you say.

I used to have a collection of M&P's, mostly LE service weapons. There is simply nothing at all in the shooting world to compare...in my opinion...with the sheer fun of shooting an M&P. Glass break triggers, light recoil. A cylinder that when opened and spun, must be observed with the eye to even tell it is spinning!

Had many enjoyable conversations with a fellow named Vito who worked in the S&W repair section.
gone, now, what an encyclopedia of knowledge on these and other Smith wheelguns.