The G11 was an experimental assault rifle designed and manufactured by German firearms company Mauser.
The Mauser G11 was a project initiated during the 1960's. NATO trials proved the weapon to be unsatisfactory and the development of the G11 project was handed over to Heckler & Koch in the 1970s. The result was the Heckler & Koch G11.
The Mauser G11 is a bullpup rifle, which was fed through an internal, 10-round helical-loading magazine. Ammunition is loaded into the weapon through a port on the side. It has a rate of fire that is speculated to be around 1500 rounds per minute.