In the 40s,50s,qnd 60s Smith & Wesson revolvers owned the law enforcement market. In the 70s law enforcement agencies started transitioning to semi autos and by the late 80s early 90s Glock had most of that market sewn up. The M&P is S&Ws comeback pistol and they have been making steady inroads with large departments such as Chicago approving their use. I have 4 M&Ps and not only are they really good pistols they have forced Glock to come up with their Gen 4 pistols to compete. I think you'll be quite happy with your M&P, it was a good choice.