Heckler and Koch USP Magazine Features The Heckler and Koch USP Magazine is manufactured to HK s exacting standards ensuring a precise fit within the USP USP Tactical and USP Expert magazine wells that maintains consistent 9mm feeding reliability through sustained use. Polymer construction keeps the magazine lightweight without sacrificing the structural integrity needed for reliable feeding and durability through repeated loading and unloading cycles. As a factory HK component it delivers the fitment accuracy and reliability that aftermarket alternatives cannot replicate across the USP family. The clear polymer body provides an instant visual round count without removing the magazine giving the shooter immediate awareness of remaining capacity during range sessions and duty use. Whether used as a primary or spare this 9mm USP family factory magazine performs to HK s exacting standards straight out of the packaging. Heckler and Koch USP Magazine Specifications Manufacturer: Heckler and Koch Model: USP Magazine Caliber: 9mm Capacity: 18 rounds Material: Polymer Color: Clear Firearm Fit: HK USP HK USP Tactical HK USP Expert