Rattle Gun

A rattle gun is a family of unprofessionally made submachine guns, typically firing pistol rounds (usually 9mm). They're all commonly open bolt and use simple blow-back mechanisms. Magazines range from left/right feeds to top and bottom, with bottom feeds being the most common. These weapons fire between 200 and 600 rounds per minute, averaging around 300. Reliability is a big issue with most, especially when one or more components is poorly machined, stamped or made of substandard materials. Most have short barrels, which increases ease of concealment but makes it less powerful. With the right tools, sturdy enough materials and the knowhow, they can be easily produced in small machine shops without issue. Because of this, they are typically associated with criminal units, revolutionaries, nutjobs and the black market.