The double shotgun fires both barrels at once when the fire key is pressed. After the gun has been fired, there will be a brief delay between shots (slightly longer than the Auto Shotgun's), then the gun will be able to fire again.
The double shotgun has a surprisingly tight spread, making it useful at up to medium range. However, the actual spread is more horizontal than compared to the auto shotgun's spread.
- The double shotgun is quite powerful against medium-strength enemies, such as Levitators. It takes two to three shots to finish off most medium-strength enemies with the double shotgun.
- Because of it's surprisingly tight spread, this weapon can be used at up to medium range. However, it should only be used against medium or large-sized enemies because of the spread. Otherwise, at least a few pellets will miss every shot.
- Its short reload time makes it a good rapid-fire weapon against medium-strength enemies.
- Double Barrel Coach Gun – The Serious Sam 1 version of this weapon.