Here's Why Your Glock Is Shooting Low Left

Published on February 24, 2026
Duration: 2:06

This guide, drawing from an experienced instructor's insights, details how to diagnose and correct a Glock shooting low left. It emphasizes inspecting and adjusting the rear sight, understanding that a drifted sight often indicates a previous owner's shooting issue or a need for zeroing. The guide also stresses the importance of trigger control and grip to overcome common flinching problems that lead to inaccurate shots.

Quick Summary

A Glock shooting low left is often caused by a drifted rear sight, a common issue with used firearms where previous owners tried to compensate for flinching. To correct this, adjust the rear sight towards the left. More importantly, focus on trigger control and grip to eliminate flinching, which is a primary cause of low left shots for many shooters.

Chapters

  1. 00:00Used Glock and Rear Sight Issues
  2. 00:27Testing the Glock's Accuracy
  3. 00:45Flinching and Trigger Jerking Explained
  4. 01:17Adjusting Sights and Improving Technique

Frequently Asked Questions

Why would my Glock be shooting low left?

A Glock shooting low left is often due to a drifted rear sight, indicating a previous owner's attempt to compensate for a flinch. It can also be caused by shooter-induced flinching, where anticipation of the shot causes a trigger jerk, pulling the muzzle down and left.

How do I adjust the rear sight on a Glock to fix low left shots?

To correct shots grouping low left, you generally need to drift the rear sight *towards* the left. This moves the point of impact to the right, compensating for the leftward deviation. Always make small adjustments and re-test fire.

What is flinching and how does it affect shooting?

Flinching is an involuntary reaction to the anticipated recoil or noise of a firearm discharge. This sudden muscle contraction often causes the shooter to jerk the trigger, pulling the muzzle down and left (for right-handed shooters), resulting in shots grouping low and left of the intended target.

Should I adjust my sights if I'm shooting low left?

Yes, if your shots are consistently grouping low left, check your rear sight's position. If it's significantly drifted, adjust it to center. However, also focus on improving your trigger control and grip to eliminate the underlying flinch, which is a common cause.

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