In Alaska it is a state law that survival gear be carried on board the aircraft Including a firearm. I used to carry a Model 29 S&W 44 magnum. The temptation to shoot passengers led me to carry on board a breakdown 30.30 and 20 Ga over and under in a scabbard. After 30 years of flying in Alaska I have never had to use it. If I were to get another gun I would get the ALASKA COPILOT available from Wild West Guns in Anchorage. It is a 457 cal that shoots 410 shot shells as well as the Griz stopper.