Smith & Wesson Brands, Inc. announced the release of the new CSX E-Series. These pistols remain aluminum-alloy-framed micro-compacts, available in four 9mm configurations: consumers can choose between a 3.1-inch or 3.6-inch barrel, two models that include 12, 15, and 17-round magazines. CSX E-Series pistols are also optics-ready and utilize an RMS-C/507K footprint.