Yesterday I pickup my new M&P 9mm Shield. Got it home and started field stripping it, I pushed the yellow sear deactivation lever down and it falls off and out through the grip. Searched other forums and found that it's happened to others. I called S&W and they are sending me a return label to send it back to them. The part that sucks is that S&W is on vacation for the 1st 2 weeks of Aug. So I probably won't see my new Shield until September. I'm kinda bummed 
