We had a M&P 40 come back into the office from a LE T&E. It appeared that the department put less than 2 mags through the gun. When it was priced out, I decided to purchase it ... the price was just too good to pass up.
If you put the CZ 100 and the M&P 40 side by side, dimensionally there is not that much difference at all. In the length of the grip, it's about 3/8". Yet, the M&P 40 fully loaded is 15+1. Add the smallest palm swell to the M&P 40 and the overall grip seems smaller than the CZ 100.
There's not that much difference in the length of the slide, either. About 1/4".
Took the M&P 40 to the range yesterday and it's an accurate pistol. With a standard rail, too.
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Mike