This version was a departure from its predecessors. Very much resembles a semi-automatic pistol, but in reality a single-shot. Chambered for .22 rimfire cartridge. Has an 8" round barrel that pivots upward for loading and a blued steel frame, with checkered rubber grips. Instead of the usual exposed hammer, this version has a knurled cocking piece that extends through rear of the frame. Approximately 7,000 manufactured between 1919 and 1933.