When designing the polymer frame for the Duty, the decision was made to retain the basic grip shape (circumference, angle, etc.) so popular in the CZ 75 family of handguns. The polymer frame platform eliminated the need for the grip panels that are used on most steel and alloy-framed autos. The absence of the grips resulted in some available space that was used to increase the magazine capacity by 2 rounds. The results speak for themselves -- the flush-fitting magazine of the P-07 Duty holds the same number of rounds that the full-sized versions of the CZ 75 do in both 9mm and .40 S&W.