A pump-action is a type of firearm mechanism commonly used in shotguns and some rifles. It operates by manually sliding a fore-end grip back and forth, which ejects the spent cartridge and chambers a new round. This action allows for quick follow-up shots without the need for a semi-automatic mechanism. The design of pump-action firearms is popular for its reliability and ease of use. Users can control the rate of fire and can easily load different types of ammunition, such as shotgun shells or rifle cartridges. This versatility makes pump-action firearms favored for hunting, sport shooting, and home defense.