Securely hold the magazines that your gun demands when you store one in the BLACKHAWK carbon-fiber Mag pouch-single Mag case-single stak holster. Featuring a built-in tension spring to accommodate various sizes, these belt holsters developed by the experts at BLACKHAWK ensure that you have the proper magazine for whatever weapon you choose to use. When you need additional magazines, simply remove the belt clip and slide in another single Mag case for easy storage with the BLACKHAWK carbon-fiber Mag pouch single stak holster. The BLACKHAWK carbon-fiber Mag pouch single Mag case is an easy choice that slips comfortably into your pocket or on your waistline..