Which action is performed to eject spent shells in a pump action shotgun?

To eject spent shells in a pump-action shotgun, sliding the fore-end back is the action that accomplishes this. When the fore-end is pulled back, it moves the bolt to the rear of the firearm, ejecting the spent shell casing from the chamber. This is a critical operation in the cycle of firing and reloading in pump-action shotguns.

This mechanism relies on the interaction between the pump action and the ejection port. As the operator slides the fore-end back, the spent casing is pushed out while preparing the shotgun to load a new shell when the fore-end is pushed forward again.

Understanding this function is vital for safe firearm operation, as improper manipulation can lead to malfunctions or accidents. Proper handling of the shotgun while performing this action ensures that the firearm is cleared of spent shells and is ready for the next shot.