M&P Help

[Caleb]

Calling for help from the M&P gurus here. I have the chance to do a trade for this M&P9 and would like some advice on it. The guy says it was sent out by Smith & Wesson to get stippled and a Fulcrum trigger installed. As far as I know, that is a trigger upgrade not m&p..?..Also, I can't find any info on this "limited" production pistol. According to the seller, only four or five hundred were made.