The Sauer M30, also known as the M30 Luftwaffe drilling, Drilling M30 or the Luftwaffedrilling, is a Nazi German "drilling" combination gun.
Little is known about the actual development of the M30, but it can be assumed that it was developed for use as a survival weapon in the Luftwaffe.
During World War II, it was used for exactly that; in the event that a pilot got shot down by enemy fire, the rifle could be used as a tool for hunting game and for self-defense against enemies until they got rescued, although it wasn't too much help in the latter field.
Only 2456 were built over a span of two years. Due to it being relatively rare, the M30 can fetch a rather high price at firearms auctions.
The M30 is a combination gun of the drilling type, in which a rifle barrel is placed underneath two shotgun barrels. The weapon is of the break-action type, similar to most double barreled shotguns.
The M30 held a 9.3×74mmR round in the bottom barrel and a 12 gauge shell in the top two.