For enthusiasts who modify their firearms, sear polishing and replacement are common practices to achieve a crisp, factory reset trigger feel. Consequently, the sear in a double-action revolver is built to be robust and is often adjustable to manage the increased stress and ensure a consistent, albeit longer, trigger pull.
Sear Impact Firing Cycle: Understanding the Trigger Mechanism
Regular cleaning to remove grit and lubrication to prevent metal-to-metal galling are vital maintenance steps. A correctly functioning sear ensures that the weapon will only fire when the trigger is deliberately pulled to the end of its travel.
A well-cut sear will have a smooth, consistent angle that allows the hammer to fall cleanly without binding or stacking. Double-Action Sear Systems In a single-action system, the sear is responsible only for releasing the hammer, as the hammer is manually cocked for every shot.
Sear Impact Firing Cycle and Trigger Function
However, if a sear fails to engage properly—a condition known as "creep"—the weapon can fire prematurely. In contrast, traditional double-action revolvers rely on a complex sear mechanism that must simultaneously rotate the cylinder, cock the hammer, and hold it until the trigger pull aligns perfectly.
More About What is a sear
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More perspective on What is a sear can make the topic easier to follow by connecting earlier points with a few simple takeaways.
