A friend, who would vote Glock says his M&P rattles when the mag is more than half full. Has anyone else heard this? Quite with 8 rounds or less, but an audible rattle above 8. Isolated incident or Quality control?
No rattles on either of my M&P's. Like most have said, both are reliable and great guns. I always refer people to the torture test of an m&p9.
"M&P Endurance Test ended at 62,333 rounds"
http://pistol-training.com/archives/1146
You'd have to buy a completely new wardrobe...