I have the M&P 2.0 and was told that, "it's not a slide release, it's a slide stop". Sure enough that's exactly what it was intended for. If you use it as a slide release you'll notice excessive wear on that slide stop catch. In theory, the slide stop can eventually stop operating as one (not holding the slide open after the last round). I wish I made this up, because I actually prefer using it to release the slide after inserting a fresh mag. I was told to RTFM (read the f##king manual)... Who reads the manual?