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The sear holds the hammer in the cocked position and releases it when the trigger is pressed. It is a core component of the 1911 fire control group, and its condition directly determines how crisp, consistent, and safe the trigger pull feels.

Signs of a worn sear include a gritty or inconsistent trigger pull, hammer follow (the hammer traveling forward with the slide without firing), failure to reset, or a gunsmith identifying worn engagement surfaces during service. If any of these occur, a replacement sear should be evaluated promptly.

The sear controls the hammer’s release when the trigger is pressed, while the disconnector resets the sear between shots to prevent the pistol from firing again until the trigger is fully released. Both are part of the fire control group, but they perform separate and distinct functions.

This is a genuine SIG SAUER OEM factory part built to the same specifications as the original. However, professional installation by a qualified gunsmith is recommended for all fire control group components to confirm proper fit, timing, and function before the pistol is returned to service.

This sear is designed and manufactured for SIG SAUER 1911 platform pistols. While the 1911 is an industry-standard platform, compatibility with other manufacturers’ 1911 pistols is not confirmed by SIG SAUER, and a qualified gunsmith should evaluate fitment before installation in any non-SIG firearm.