An over-under is a type of shotgun featuring two barrels stacked one on top of the other, as opposed to side-by-side barrels. This design allows the shooter to fire two shots in quick succession, with the barrels typically fired in a specific order — the top barrel first, followed by the bottom barrel. Over-under shotguns are known for their balance, precision, and versatility, making them popular choices for both sport shooting and hunting, especially for birds such as pheasants, ducks, and quail.

The over-under configuration offers several advantages, including a more compact and lightweight design compared to side-by-side shotguns, which enhances handling and makes it easier to swing the firearm smoothly when tracking fast-moving targets. The stacked barrels contribute to a straight line of sight, improving accuracy and ensuring a more consistent shot pattern. Additionally, over-under shotguns tend to have a superior recoil management system, as the weight is evenly distributed between the barrels, providing better control during shooting.

Over-under shotguns often feature a single trigger or a selective trigger system, allowing the shooter to choose which barrel to fire. These shotguns are highly regarded for their craftsmanship, durability, and elegance, making them popular among hunters and competitive shooters alike. Their ability to deliver quick, accurate follow-up shots, along with their sleek design, has made the over-under shotgun a favored choice for both experienced and novice hunters.