This is a factory OEM Springfield XD .40 S&W 12 Round Magazine manufactured by Springfield Armory. This Springfield XD .40 magazine holds up to 12 rounds of .40S&W ammunition in its stainless steel construction. Its anti-tilt follower and steel feedlips promise for error-free and consistent feeding into your Springfield XD .40 S&W handgun. Pick up a Springfield XD .40 S&W 12 Round Magazine from The Mag Shack.