The Schnellfeuer, or Model 712, was Mauser’s answer to the Spanish production of selective fire C96 lookalikes. Just over 100,000 of these pistols were made by Mauser in the 1930s, mostly going to China (although some did see use in other countries, and also with the SS). They use 10- and 20-round detachable magazines, and are almost all chambered for the 7.63mm Mauser cartridge. Rate of fire is about 900-1000 rounds per minute.
One of the urban legends that has grown up around these guns is that Chinese soldiers would hold them sideways, and use the recoil to fire in a horizontal arc. This does work, but is a pretty crude way to use the gun. Without the attached shoulder stock, it is much better left on semiauto. With the stock, it makes a surprisingly effective and controllable submachine gun.
Thanks to TFBTV for the opportunity to shoot and film this very cool gun!
At Forgotten Weapons I think the most interesting guns out there are the most obscure ones. I try to search out experimental and prototype weapons and show you how they work, in addition to more conventional guns that you may not have heard of before. You’re much more likely to find a video on the Cei Rigotti or Webley-Fosbery here than an AR or Glock. So, do you want to learn about something new today? Then stick around!