The Crucial Universal Light Holster is engineered for handguns equipped with Surefire X300U/T weapon lights featuring a patent pending retention shim system for quick and precise fit adjustment.Crucial Universal Light Holster - Outside Waistband DesignDurable Kydex construction for reliable retentionCompatible with handguns equipped with Surefire X300U/T (A & B models)Right hand configurationPatent pending retention shim for custom fit adjustmentQuick adjustment capability for multiple pistol modelsIdeal for tactical applications and concealed carry this OWB holster provides secure retention while accommodating various handgun models when equipped with the specified Surefire weapon light system.