Quick Tip: Basics of Measuring & Adjusting Iron Sights

Published on April 5, 2023
Duration: 3:33

This guide, presented by an experienced instructor from Brownells, details the critical differences in measuring front sights for handguns versus rifles. It clarifies how to adjust iron sights to achieve the desired Point of Impact (POI), emphasizing that front and rear sight adjustments work in opposite directions. Understanding these nuances is key for accurate firearm sight management.

Quick Summary

Learn the critical differences in measuring handgun versus rifle front sights. Handgun sights are measured top-of-sight to top-of-slide, while rifle sights are measured top-of-sight to bottom-of-dovetail. Understanding these measurements and how front/rear sight adjustments affect Point of Impact is key for accurate shooting.

Chapters

  1. 00:04Introduction: Iron Sight Adjustment Basics
  2. 00:28Handgun Front Sight Measurement
  3. 01:00Rifle Front Sight Measurement
  4. 01:20Importance of Correct Measurement
  5. 01:55Understanding Sight Adjustments
  6. 02:14Rear vs. Front Sight Adjustment
  7. 02:43Simplifying Adjustments: Rear Sight Rule
  8. 03:04Conclusion and Support

Frequently Asked Questions

How do you measure a handgun front sight?

To measure a handgun front sight for replacement, you measure its height from the top of the sight itself directly up to the top surface of the firearm's slide. This ensures you select a sight of the correct height for proper alignment.

What is the difference in measuring rifle front sights?

Rifle front sights are measured differently than handgun sights. The measurement is taken from the top of the sight down to the bottom of the dovetail, which is the slot the sight sits in on the barrel or receiver.

How do front and rear sight adjustments affect where a bullet hits?

Adjusting the rear sight up will raise your Point of Impact (POI). Conversely, to raise your POI using the front sight, you must lower the front sight. Front sight adjustments are opposite to rear sight adjustments for both elevation and windage.

What is the easiest way to adjust iron sights?

The simplest method to adjust iron sights and control your Point of Impact (POI) is to always try to adjust the rear sight. This avoids the confusion associated with the inverse adjustments required for the front sight.

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