High Quality Polymer For both 9mm and .40 S&W This magazine grip extension for the FN FNS 9C/40C provides an additional .75 of gripping surface. This provides a place for the pinkie finger to lie, allowing a full grip with improved control during firing, and a more confident draw. Installation is simple, the extension replaces the magazine floor plate.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }