Masterpiece Arms MPA Defender Pistol Magazine 9mm Luger 30 Round Black 1 Pack Polymer 30RD. Specifications for Masterpiece Arms MPA Defender 9mm Luger 30 Round Pistol Magazine: Manufacturer: Masterpiece Arms Gun Model: Masterpiece Arms MPA30 Caliber: 9mm Luger Magazine Capacity: 30 Round Color: Black Fabric/Material: Polymer Number of Rounds: 30 Package Contents: Masterpiece Arms MPA Defender 9mm Luger 30 Round Pistol Magazine What firearm models does the manufacturer say Masterpiece Arms MPA Defender 9mm Luger 30 Round Pistol Magazine is compatible with? The manufacturer suggests that Masterpiece Arms MPA Defender 9mm Luger 30 Round Pistol Magazine is compatible with Masterpiece Arms MPA30Masterpiece Arms 2070P-30RD: MPA Defender Pistol Magazine 9mm Luger 30 Round Black 1 Pack Polymer