Hi, I am Bryan and reside from Springfield, Missouri. I currently only own one M&P ( a full size 9mm), and I plan on adding a compact and possibly a .45 after a while once some of the kinks get worked out of the guns. I am currently waiting on a shipping label from Smith so that I can send my 9 in for a slide lock problem ( locking open with rounds still in mag), but I only hear great things about their warranty department which is nice. I was happy to find that there was a forum dedicated to these guns, that is pretty amazing in itself. In addition to my M&P I also own (2) 3913's, several glocks, a caspian .45, and a Kimber (which is amazing). I was curious as to whether anyone on here could tell me when my gun was manufactured its serial # is MPBxxxx? Thanks for the forum!