Blackhawk 410500PBK Single Mag Case Single StackOur single mag cases feature a builtin tension spring to securely hold magazines of various sizes. For two magazines on the same carrier, you can remove the belt clip and place two single mag cases sidebyside on our dual rail accessory platform (sold separately). The case can also be placed next to one of our light carriers for a combo light/mag carrier.FeaturesFeatures a builtin tension spring to securely hold magazines ofvarious sizesRemove the belt clip and place two single mag cases sidebyside on dual rail accessory platformFits 9mm/.40 cal/.45 cal/10mm/.357 sigWeapon: 9/10/.40/.45