Springfield Armory XDM5001C Backstrap Sleeve made of Polymer with Black Finish & 1 Piece Design for 9mm Luger, 40 S&W Springfield XD-M Compact with #1 Backstrap

This backstrap sleeve fits over a full size XD-M magazine in 9mm or 40 S&W to make your 3.8" XD-M Compact pistol frame fit a high capacity full size magazine. This black polymer piece does not extend the length of the magazine.