Everybody should get a chance to own a two inch M&P. Mine's in the C127000 range, and is a ton of fun to shoot. Everyone is amazed at how accurate these things are - with such a short sight radius.
It’s a little sweaty but appears to be original and correct. $400 is a pretty good price today for any M&P snubby in reasonably good condition. And I also have quite a few listed from that time period. Yours has the so-called “fish hook” high-speed hammer and the 4-line address frame stamp, both of which began around the time yours was made. Some collectors might call it an early “pre-Model 10.”