An over-under shotgun is a type of firearm designed for shooting sports and hunting. It features two barrels stacked one above the other, allowing the shooter to fire two shots in quick succession. This design provides a compact and balanced feel, making it popular among hunters and clay target shooters. The over-under shotgun typically has a break-action mechanism, meaning the barrels hinge open for loading and unloading. These shotguns are available in various gauges, such as 12-gauge and 20-gauge, and are known for their accuracy and reliability. They are often used in disciplines like trap shooting and skeet shooting.