Double and Single Action Revolvers Explained

Published on December 23, 2023
Duration: 0:59

This video clearly explains the fundamental differences between single-action and double-action revolvers, using practical examples like the Heritage Rough Rider and Diamondback Sidekick. It also extends the DA/SA concept to semi-automatic pistols, exemplified by the Sig P226, detailing how the trigger mechanism functions in both modes and the role of a de-cocker. The content is ideal for beginners seeking to understand basic firearm actions.

Quick Summary

Single-action revolvers require manual hammer cocking for each shot, with the trigger only releasing the hammer. Double-action revolvers allow the trigger pull to both cock and release the hammer. DA/SA systems offer both options, providing a choice between a heavier double-action pull and a lighter single-action pull.

Chapters

  1. 00:00Single Action Revolvers Explained
  2. 00:22Double Action/Single Action Revolvers Explained
  3. 00:40DA/SA in Semi-Automatic Pistols

Frequently Asked Questions

What is the main difference between single-action and double-action revolvers?

In single-action revolvers, you must manually cock the hammer for every shot. Pulling the trigger only releases the hammer. In double-action revolvers, pulling the trigger both cocks and releases the hammer, allowing for faster follow-up shots without manually cocking.

How does a DA/SA semi-automatic pistol work?

A DA/SA pistol like the Sig P226 allows for two trigger modes. Racking the slide cocks the hammer for a lighter single-action pull. Using a de-cocker safely lowers the hammer, requiring a longer, heavier double-action pull for the first shot.

What firearms are demonstrated in the video explaining action types?

The video demonstrates a Heritage model for single-action revolvers, a Diamondback Sidekick for double/single-action revolvers, and a Sig Sauer P226 for double/single-action semi-automatic pistols.

What does DA/SA mean for a firearm's trigger pull?

DA/SA means the firearm can be fired in two ways. Double Action: The trigger pull cocks and releases the hammer (longer, heavier pull). Single Action: The hammer is manually cocked first, and the trigger only releases it (shorter, lighter pull).

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