Compatible Firearms: WALTHER PPK/S Caliber: .380 ACP Capacity: 7 rounds Coating: Blued Follower: Heat treated stamped steel Tube: Heat treated carbon steel Spring: High tensile music wire Floorplate: Polymer finger rest If you are looking for a magazine for your Walther pistol, choose the magazine manufacturer that is the most trusted in the industry. All Mec-Gar magazines are made in Italy with the most sophisticated technologies and best materials.