Heckler and Koch Mark 23 Magazine Features The Heckler and Koch Mark 23 Magazine is manufactured to HK s exacting standards ensuring a precise fit within the Mark 23 magazine well that maintains consistent 45 ACP feeding reliability through sustained use. Steel construction provides the structural integrity needed for reliable feeding and long-term durability through repeated loading and unloading cycles without deformation or spring fatigue. As a factory HK component it delivers the fitment accuracy and reliability that aftermarket alternatives cannot replicate on the Mark 23 platform. The flat floor plate maintains the Mark 23 s clean flush profile for unobstructed insertion and removal in any condition. Whether used as a primary or spare this 45 ACP Mark 23 factory magazine performs to HK s exacting standards straight out of the packaging. Heckler and Koch Mark 23 Magazine Specifications Manufacturer: Heckler and Koch Model: Mark 23 Magazine Caliber: 45 ACP Capacity: 10 rounds Material: Steel Floor Plate: Flat Color: Black Firearm Fit: HK Mark 23