HIGH STANDARD MFG CO Hi-Standard Model H-D Military

The High Standard Model H-D Military is a .22 LR semi-automatic pistol produced between 1942 and 1951, characterized by an external hammer ("H-D"),, straight-blowback operation, and a 10-round, heel-release magazine. Used extensively by the U.S. military for training, it featured walnut grips and adjustable sights.