This value pack replacement or spare magazine is compatible with your ruger security-9 compact.It comes with one flush fit floor plate (installed) and one extended floor plate in the package.Made in the usa.Note: this mag is not compatible with the ruger sr9 or sr9c.Caliber: 9mm LugerCapacity: 10rdFinish: OxideModel: Security-9Material: SteelType: DetachableModel Fit: Security-9 CompactBrand Fit: RugerCapacity: 10