ProMag Glock 17/19/26 9mm 32 Round Pistol Magazine Black Polymer. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire. Specifications for ProMag Glock 17/19/26 9mm 32 Round Pistol Magazine: Manufacturer: ProMag Gun Make: Glock Gun Model: Glock 17 Glock 26 Glock 19 Caliber: 9mm Luger Magazine Capacity: 32 Round Condition: New Fabric/Material: Polymer Package Contents: ProMag Polymer 17/19/26 9mm 32-Round Pistol Magazine What firearm models does the manufacturer say ProMag Glock 17/19/26 9mm 32 Round Pistol Magazine is compatible with? The manufacturer says that ProMag Glock 17/19/26 9mm 32 Round Pistol Magazine is compatible with Glock 19 Glock 26 Glock 17ProMag GLK-A8B: Glock 17/19/26 9mm 32 Round Pistol Magazine Black Polymer