I have both full size and compact M&P 40. I have no issues with the full size but the compact is giving me grief.
During the recoil of the compact the I often hit the mag release button with the "meaty" part of my weak (left) hand, which disengages the mag, and prevents the next round from chambering. I feel lilke the mag release button is too sensitive. I've contacted Smith and Wesson and they advised me to swap the mag release to the other side of the pistol! .. I need suggestions cause I would love to keep this pistol.