Re: S&W MP and P99
You can find instruction to field strip the M&P here.
This doesn't show a full detail strip though, and unless you find someone with an armorer's manual I doubt you will find a full detail strip.
"...As to the species of exercise, I advise the gun. While this gives a moderate exercise to the body, it gives boldness, enterprise, and independence to the mind. Games played with the ball, and others of that nature, are too violent for the body, and stamp no character on the mind. Let your gun therefore be the constant companion of your walks."