These grips fit the Springfield Armory EMP CCC 4" (CONCEALED CARRY CONTOUR) Barrel version in both 9mm and .40 S&W. Factory grips on the EMP may be either slim or standard thickness depending on the model. Most of the G10 grips are standard thickness while the wood grips are generally slim. If you are changing the thickness of grips from what you now have you will need to change out screws and bushings as well.