pump action shotgun

Pump-action or slide-action is a repeating firearm action that is operated manually by moving a sliding handguard on the gun's forestock. When shooting, the sliding forend is pulled rearward to eject any expended cartridge, and then pushed forward to cock the hammer/striker and load a new round of cartridge into the chamber. Most pump-action firearms use an integral tubular magazine, although some do use detachable box magazines.
Because the forend is manipulated usually with the support hand, a pump-action gun is much faster than a bolt-action and somewhat faster than a lever-action, as it does not require the trigger hand to be removed from the trigger while reloading. Also because the action is cycled in a linear fashion, it creates less torque that can tilt and throw the gun off aim when repeat-firing rapidly.

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