Knötgen automatic rifle

The Knötgen automatic rifle is a two barrel automatic rifle of German origin. A machine gun derivative also existed as the Knötgen maschinengewehr.

Overview
The Knötgen automatic rifle is a two barrel, magazine fed light machine gun using a delayed blowback operation. It uses two bolts and has a spring buffer and cocking lever in the stock. It was the first firearm to have a pistol grip inserted magazine.