Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension Black 5. Specifications for Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension: Manufacturer: Agency Arms Color: Black Magazine Capacity: 5 Round Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 19 Features of Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension Dot Matrix Panel for Marking Chrome Silicon Alloy Spring Increases capacity by 5 rounds (9mm) Extended Ledge for one-handed manipulations Compatible with the G19 G23 AND G32 Package Contents: Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension What firearm models does the manufacturer say Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension is compatible with? The manufacturer suggests that Agency Arms Glock 19 9mm +5 Rounds Pistol Magazine Extension is compatible with Glock 19Agency Arms AGEBP-G19-BLK: Glock 19 9mm +5 Rounds Pistol Magazine Extension Black