Specter Gear Molle/Pals Compatible Modular Tactical Holster for Glock 17, 22 and 31 Series Handguns Modular webbing on the outside and spine of holster allows for mounting of pouches on the holster Fits Glock 17, 22 and 31 series handguns Compatible with all USGI MOLLE PALS modular carriers Can be configured for right or left handed users Moldable alloy thumb break retention