"I really don't understand your concern about the lack of safety on the M&P. If it is deemed safe enough for most of the security companies in Canada so much so that the largest ones such as G4S carry them, it is certainly safe enough for you. A few police services are also going to be making the switch.
That being said. The most reliable in that group is likely the M&P, the least is the Beretta. Your best bet is to check them all out in person and see which one suits you best. "
- So If I drop my SIG P226 on the ground while a round is chambered there is a safety feature that will keep the firearm from discharging.
What are the safety features of the M&P? I'm ignorant as I have searched this numerous times and found little info.
Glock and M&P both have internal safeties to prevent discharge when dropped. The external safeties on most guns are not there to prevent these kind of situations. I also do not rely on safties as anything mechanical can break. As said before, proper handling and control is your best safety.
Mark