I have both an M&P Pro and an M&P 40c. Both slides will automatically go forward after I slam a mag in. There have been references to this in other forums but I wanted to get info from other M&P owners.

Some people say this happens 100% of the time, others say it only happens some of the time. Still others say that S&W has changed something and the newer guns do not do this.

What is the real scoop?

Were the guns designed this way or is it just a fluke?

Personally I like it and I can count on both guns auto forwarding. Makes things very fast on reload. What is your opinion?