Zero9 Triple Mag Case Holster Glock .45 ACP Molle Loks Plain Black. 45 Caliber Mags With Bullets Facing Out For The Smallest Footprint Available. Fits Glock Doublestack .45 Caliber Magazines. Compatible Pistol Models Include: G20 G21. Does Not Fit Non-glock Mags. Specifications for Zero9 Holsters Zero9 Triple Mag Case / Glock 45 Cal / Plain Black / Molle Loks: Manufacturer: Zero9 Holsters Color: Plain Black Caliber: .45 ACP Fastener/Closure Type: MOLLE Package Contents: Zero9 Holsters Zero9 Triple Mag Case / Glock 45 Cal / Plain Black / Molle Loks