Increase the volume of your Springfield XD handgun's firepower by adding an extra Springfield Armory Factory Magazine to your arsenal. Each factory magazine from Springfield is built to manufacturer's specifications. Rounds are arranged in a double-row column with a viewing window, so you'll know how many cartridges are in the magazine. Fits your Springfield XD-series handgun Increases gun's shooting volume Built to manufacturer's specifications Viewing window shows number of cartridges