Single Action VS Double Action Pistols - GUNS EXPLAINED

Published on December 4, 2024
Duration: 1:34

This video explains the fundamental differences between single-action (SA) and double-action (DA) pistol mechanisms, covering revolvers and semi-automatics. It details how trigger pulls cock and release the hammer, contrasting SAO, DA/SA, and striker-fired systems like Glock's. The content highlights practical implications for shooting and safety, using specific firearm models as examples.

Quick Summary

The main difference between single-action (SA) and double-action (DA) pistols is the trigger's function. DA triggers cock and release the hammer in one pull, while SA triggers only release a manually cocked hammer. DA/SA offers both options, and striker-fired systems have a consistent pull.

Chapters

  1. 00:00Intro: DA vs SA Trigger Pulls
  2. 00:08Double Action Revolver Explained
  3. 00:15Single Action Revolver Explained
  4. 00:26Single Action Semi-Auto (1911)
  5. 00:50DA/SA Semi-Auto (Sig P226)
  6. 01:13Striker-Fired (Glock)

Frequently Asked Questions

What is the main difference between single action and double action pistols?

The primary difference lies in the trigger pull. In a double-action firearm, the trigger cocks and releases the hammer. In a single-action firearm, the trigger only releases the hammer, which must be manually cocked first.

How does a DA/SA pistol work?

A DA/SA (Double Action/Single Action) pistol allows for a heavier double-action first trigger pull, which cocks and releases the hammer. Subsequent shots use a lighter single-action pull because the hammer is already cocked.

Are striker-fired pistols single or double action?

Striker-fired pistols are often considered a hybrid. Racking the slide partially cocks the striker, and the trigger pull completes the cocking action and then releases it, resulting in a consistent trigger pull weight.

What is an example of a Single Action Only (SAO) pistol?

The classic 1911 pistol is a prime example of a Single Action Only (SAO) firearm. In these pistols, the slide cocks the hammer, and the trigger's sole function is to release the hammer.

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