This is a 9 round magazine for the Springfield XDS Mod.2 9mm pistol. These magazines feature a Grip X-Tension Sleeve. Please note : this magazine is compatible with all XDS pistols, however, the extension sleeve is only compatible with the XDS Mod.2. Product Specifications Manufacturer: Springfield Model: XDS-Mod 2 Caliber: 9mm Capacity: 9 Rounds Features: Grip X-Tension