Koppelschloßpistole

Very Rare and Unique Nazi multi-shot 5.6mm (.22 cal) belt buckle gun. There is a long and varied history of these non-standard guns know as SS-Waffenakademie Koppelschloßpistole (Belt Castle Gun). Invented by Louis Marquis while in a WWI POW Camp and received a patent for a similar design in 1935. 1944 Belt Buckle Gun