Ok, just fired a brand new S&W M&P compact 40 with the 3 dot sights. After firing for the first time, one of the rear sight "Dots" fell out! I will be calling Smith asap, but in the meantime, anyone heard of this? and does any other Sight Pusher work on the M & P series gun. Example, if I get new sights from Smith, can I use a "Glock" sight pusher for putting on replacement sights? Anyone have any suggestions for a gunsmith?