Ruger Security-9 Compact 9mm Luger Pistol Magazine 15 Round Black Oxide 1 Pack Steel 15RD. It includes a polymer magazine adatper. Specifications for Ruger Security-9 Compact 15 Round 9mm Luger Pistol Magazine: Manufacturer: Ruger Gun Make: Ruger Gun Model: Ruger Security-9 Caliber: 9mm Luger Magazine Capacity: 15 Round Color: Black Fabric/Material: Stainless Steel Package Contents: Ruger Security-9 Compact 15 Round 9mm Luger Pistol Magazine What firearm models does the manufacturer say Ruger Security-9 Compact 15 Round 9mm Luger Pistol Magazine is compatible with? The manufacturer says that Ruger Security-9 Compact 15 Round 9mm Luger Pistol Magazine is compatible with Ruger Security-9Ruger 90681-15RD: Security-9 Compact 9mm Luger Pistol Magazine 15 Round Black Oxide 1 Pack Steel