Hino Komura

The Hino-Komuro pistol (sometimes spelled Komura) was developed by a young Japanese inventor named Kumazo Hino, and financed by Tomijiro Komuro in the first decade of the 20th century. The gun uses a virtually unique blow-forward mechanism, which makes it very interesting to study. The rear of the receiver houses a fixed firing pin, and the barrel is pushed forward upon firing. To cock the gun, the barrel is manually pulled for ward about one inch (using serrations on the exposed front section of the barrel). As the barrel is pulled forward, it pulls with it a follower that pulls a cartridge forward out of the magazine and lifts it up into the axis of the bore. When the grip safety and trigger are depressed, the barrel is snapped backwards into the action by a spring. The ready cartridge is chambered and driver backwards with the barrel onto the fixed firing pin.