trigger, single-action

A single action trigger is one that only releases the hammer or striker to initiate the firing operation of a gun. A gun with a single-action trigger must be cocked manually before actuating the trigger.1

It is possible for a gun to be both double-action and single-action.2

The single action trigger is the earliest type of trigger design.

aka:

      • SA (acronym)

related:

      • trigger
      • trigger, double-action
      • trigger, double-action only
      • trigger, single-action only

footnotes/sources:

  1. “Glossary.” ⇒ Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.
  2. A modern Smith & Wesson revolver is an example of a gun that is both double-action and single-action.