pump action

Thân thiện

A hunter uses the pump action to load his shotgun.

Definition

Noun: - A type of firearm operating mechanism: A pump action is a repeating action mechanism used in firearms, particularly shotguns and some rifles. It is operated by manually moving a sliding forearm (the pump) back and forward. This motion ejects the spent cartridge case, cocks the firearm, and loads a new round from the magazine into the chamber.

Usage

• The term "pump action" is used to describe the mechanism itself or a firearm equipped with this mechanism.
• It is typically used as a noun phrase, often functioning as a compound modifier before another noun (e.g., pump-action shotgun).

Examples

• Noun:
  • The police officer preferred a shotgun with a pump action for its reliability.
  • Operating the pump action requires a firm back-and-forth motion.

Advanced Usage

• As a compound modifier: When used before a noun, it is often hyphenated.
  • He owns a classic pump-action rifle.
  • The pump-action design is very common for home-defense shotguns.

Variants and Related Words

• Slide action: A synonym for pump action, emphasizing the sliding motion.
• Pump: A common short form used informally to refer to a pump-action firearm (e.g., "Grab the pump").
• Lever action: A different firearm mechanism operated by a lever, often compared/contrasted with pump action.

Synonyms

• Slide action
• Trombone action (less common)

Notes on Meaning

• The term specifically refers to the mechanical action, not the firearm itself. One would say "a pump-action shotgun," not simply "a pump action" to mean the whole gun, though the latter is common in informal contexts.
• This mechanism is distinct from semi-automatic, bolt-action, or break-action designs.

Học thuật

Noun

1. action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round

Từ đồng nghĩa

• slide action