The M30 Drilling combination gun is a firearm that has two shotgun barrels and one rifle barrel. It was made by the German company JP Sauer & Sohn and has been used by Luftwaffe pilots since WW2 as a survival weapon. The M30 Drilling can fire 12 gauge shotgun shells or 9.3x74mmR rifle cartridges. It has a break-action system with two triggers and a selector switch. Though its intended role is as a tool for survival, the M30 Drilling is famously well-made and will function perfectly as a tool for conventional big-game hunting.