Springfield Armory XDM Gear Backstrap 2 Compact Sleeve 9mm/.40 3.8in 1 Pack Polymer. 8in XD-M Compact pistol frame fit a high capacity full size magazine. This black polymer piece does not extend the length of the magazine. Specifications for Springfield Armory XDM Gear 9mm/.40 3.8in Backstrap 1 Compact Sleeve: Manufacturer: Springfield Armory Color: Black Fabric/Material: Polymer Gun Model: Springfield Armory XD-M Gun Make: Springfield Armory Package Contents: Springfield Armory XDM Gear 9mm/.40 3.8in Backstrap 1 Compact Sleeve The Springfield Armory XDM Gear Magazine X-Tensions Sleeve For Backstrap #1 On XDM 9mm/.40 3.8 Inch Compact Model is a quality addition to the Springfield Armory USA lineup. For more great deals on Magazines by Springfield Armory USA please browse our Springfield Armory Magazines page. What firearm models does the manufacturer say Springfield Armory XDM Gear 9mm/.40 3.8in Backstrap 1 Compact Sleeve is compatible with? The manufacturer says that Springfield Armory XDM Gear 9mm/.40 3.8in Backstrap 1 Compact Sleeve is compatible with Springfield Armory XD-MSpringfield Armory XDM5002C: XDM Gear Backstrap 2 Compact Sleeve 9mm/.40 3.8in 1 Pack Polymer