A survival rifle is typically a minimalist rifle that can be broken down and stored in a vehicle, boat, aircraft or backpack and brought to use as a “last resort” firearm for taking wild game. As such, it is typically chambered in calibers like 22 LR, 22 Hornet or 410 shotgun. A typical survival rifle is not the ideal firearm for big-game hunting or home defense. This is something to have when you may need it most. One of the most popular designs was built by Armalite as the AR-7.
The concept of a survival rifle goes back to World War II. Pilots who were shot down but survived behind enemy lines were mostly lucky to have a revolver or maybe even an M1911A1. Those might be good for personal defense if you had to parachute into no-man’s land, but what if you had to bail out on a deserted island with no food prospects?