Beretta 1918/30 Carbine

These are very interesting carbines. Made by beretta after the Great War. Built off the beretta 1918 submachine guns hat had a top loading magazine. They fired at about 900-1500 rounds per minute. The beretta 1918s were built from old aircraft guns called the Villar Perosa. It was basically the action of two beretta 1918s strapped together and fired at the same time. These guns fired at about 1800-3000 rounds per minute. The beretta 1918/30 carbine is the semi auto version of the 1918 that feeds from a bottom loading magazine. They are rare guns today and would love to have one but can never find one. They almost never pop up on the major auction houses or online websites. Any suggestions?

Yeah they are neat little carbines. And basically the closest thing I would ever get to owning a 1918 beretta or ovp (because there are little to none)