The pistol made by Mao Se Arsenal is one of the earliest automatic pistols in the world. Invented by the German Federer brothers and named after Mao Se. The gun is 288 mm long, 7.63 mm in caliber and weighs 1.24 kg. The ammunition has 20 magazines, and the initial velocity of the bullet is 425 meters per second. The shooting mode is single shot and continuous shot, the shooting speed is 900 rounds per minute, and the effective range is 50-65,438+050 meters.

This kind of pistol has the advantages of great power, reliable action and convenient use, and is widely circulated in many countries in the world. Imitation has a long history in China and is widely used in War of Resistance against Japanese Aggression. The "mauser gun" and "box gun" in the 20th ring refer to this kind of pistol.

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It is said that the box cannon was designed by Fidler, three brothers of Mao Se factory, who used their work and leisure time to chat. However, this gun was finally patented by Mao Se, the owner of Mao Se Arsenal, so some people took it as evidence of Mao Se's active participation.

However, Germany's patent law allows companies to be named by inventors as representative applicants and patent owners, unlike the United States, and then transfer patent rights. However, it was Mao Se himself who applied for a patent for the box gun in the United States. So mauser pistol is also called Mao Se pistol.

The second reason is that after the end of World War II, the American military commander stationed in the Mao Se factory, knowing what medicine he had taken, ordered the records of the Mao Se factory to be burned with torches. Since then, Mao Se rifles and Mao Se pistols all over the world have lost their birth certificates, so everyone has to guess. The burned records also include documents such as research and development logs, so it is still controversial who invented the box gun.

Box gun, also known as Fidler pistol in Mao Se factory, is another proof that the three brothers have a lot to do with it. German mauser guns have been mass-produced for 40 years, and the interior has hardly changed. It can be said that the original design is almost perfect and there is nothing to improve.

Dismantling mauser guns basically requires no tools. Only one bullet of a mauser pistol can disarm the gun. The box gun is a typical ugly and almost romantic one.