This Springfield OEM XD factory magazine is designed for the 9mm XD pistol. This is a direct factory replacement magazine that is the exact same as what is originally shipped with the XD pistols.
This magazine has a stainless steel finish and holds a total of 16 rounds.
Stocking up on a few extra magazines is a great idea. You can keep a few in a few different places to ensure that you always have one where you need it. Also, if you have a few magazines, you can spend more time at the range shooting, and less time reloading.