single action

adj, noun — 2 senses

single action

adj

1

Engineering, Firearms, Government, Military, Natural sciences, Physical sciences, Politics, Tools, War, Weaponry Requiring a separate cocking movement to cock the hammer before a trigger pull can then fire the cartridge.

single action

noun

1

Engineering, Firearms, Government, Military, Natural sciences, Physical sciences, Politics, Tools, War, Weaponry A trigger mechanism with such behavior.

Some prefer a single action because cocked-and-locked is their normal carry mode.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.