Rock Island 42384 5.0 Replacement Magazine 17Rd Flush 9mm Luger, Black Steel, Fits RIA 5.0 This Act Mag Magazine For RIA5.0 Is a Standard Factory Replacement Magazine. This Magazine Has a 17 Round Capacity, chambered In 9mm And features a Steel Magazine Body With a Black Finish. Caliber: 9mm Luger Capacity: 17Rd Model: 5.0 Material: Steel Capacity: 17 Manufacturer: Armscor Mfg Number: 42384 Model: 5.0 Series: Replacement Magazine