M&P Shield .40, I can appendix carry in a t-shirt and it doesn't imprint super visibly, even with the extended magazine. I just buy my pants an inch bigger in the waist and it's perfect. The recoil isn't nearly as bad as you would think, with it being a .40 cal. I shot some +P through it and had some problems with malfunctions (Buffalo bore JHP 165 gr, failure to feed/chamber after 1-2 shots). The only thing I added to it was some Trijicon night sights (with tritium), because I didn't like the original sights. I may upgrade the trigger at some point, the reset feels sort of sloppy/late compared to what I'm used to. I have a new full size M&P 9mm and the trigger is a little better, which makes sense because I'd heard they were planning to re-work the triggers across the M&P line.

