pump-action

[ puhmp-ak-shuhn ]

Phonetic (Standard)IPA

adjective

(of a shotgun or rifle) having an action that extracts the empty case, loads, and cocks the piece by means of a hand-operated lever that slides backward and forward; slide-action.

pump-action

(of a shotgun or other repeating firearm) operated by a slide-action mechanism feeding ammunition from a magazine under the barrel into the breech
spraying or dispensing liquid by means of a pump rather than using a propellant

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An Americanism dating back to 1910–15

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His 12-gauge pump-action shotgun was purchased for $279 at Lock N Load, a gun store in an Oldsmar strip mall, authorities say.

This simple mechanism is a practical means for converting circular mule motion into vertical reciprocating pump action.

The pump-action is the usual nickel action, that was formerly general on our ships, and is still widely used on smacks.

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