Our magazine pouches have a built-in tension spring, to hold your magazine in place until you needit and to allow the use of a variety of magazines in each pouch. The most interesting thing about ourmagazine pouches is that the unique belt clip can be removed and they can be placed side by side onour Dual Rail Accessory Platform, for those wanting a double magazine pouch, on the same carrier.Or, they can be placed beside one of our light carriers, for a combo light/mag carrier.