Our local police dept is looking to replace their old Smith 5906's and had Smith send them some M&P models for evaluation. They had 3 different guns malfunction to the point of being unusable and had to be returned to S&W with less than 1000 rounds in each gun. I'm not sure if they were 40's or 9mm's but think they were 9mm's because they seem happy with the performance they have been getting from the 5906's. I was really thinking about buying one before I heard about this.
WOW, I'd really like to know which police agency this is. They must have a heck of a torture test.
I know of another law enforcement agency who is testing the M&P 9mm with no breakage at 20,000+ round count.