We have grips for both the Springfield Armory EMP (3") and the new EMP Champion 4". Note that the 3" and 4" refer to the barrel length which determines the grip size. These grips are cut to slim 1911 thickness of about 0.16". 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 from standard to slim thickness, you will need to change the bushings and screws to slim 1911 bushings and screws for these grips to fit.