This is a factory Springfield Armory XD-S .45 ACP Magazine.Constructed from Stainless Steel the Springfield XD-S magazine has a 5 round capacity and features a polymer base plate polymer follower and fits flush with the firearm's grip.All factory Springfield Armory XD-S magazines are made to the same specifications and features as the magazine that came with your firearm.FeaturesSpringfield Armory XD-S Magazine .45 ACP 5 RoundsCaliber: .45 ACPCapacity: Five RoundsBody Material: Stainless SteelSpring Material: High Tensile Spring SteelFollower Material: PolymerFollower Color: BlackPolymer Base PlateFlush FitColor: Stainless FinishFitsSpringfield Armory XD-S chambered in .45 ACP