The M&P 40 is a pistol designed for the newer 40 S&W caliber, which is not quite as powerful as the 45 ACP but still more powerful than a 9x19 mm seen with many of the other pistols in the game. The M&P 40 is a well rounded gun suitable for many situations that require stopping power but would require reloads in other guns such as the M1911. The Shield class has the one handed version of the M&P 40 for use.