Quick Tip: Measuring rifle sight height.

Published on September 21, 2016
Duration: 1:40

This guide explains how to accurately measure the required height for a rifle's front sight. The primary method involves removing the existing sight and measuring its total height, including the dovetail, using dial calipers. An alternative method is provided for situations where the sight cannot be removed, which involves measuring from the barrel and adding an average dovetail height.

Quick Summary

Rifle sights are measured from the top of the sight to the bottom of the dovetail. For the most accurate measurement, remove the existing sight and use dial calipers. If removal isn't possible, measure from the barrel top to the sight top and add 90 thousandths of an inch.

Chapters

  1. 00:00Introduction: Why Measure Sight Height
  2. 00:12How Rifle Sights Are Measured
  3. 00:16Measuring with Dial Calipers
  4. 00:31Pistol vs. Rifle Sight Measurement
  5. 00:43Alternative Measurement Method (Sight Cannot Be Removed)
  6. 01:04The 90 Thousandths Rule Explained
  7. 01:16Conclusion and Tech Line Support

Frequently Asked Questions

How are rifle sights measured for height?

Rifle sights are measured from the top of the sight down to the bottom of the dovetail. This measurement ensures you get the correct height for your specific rifle, as dovetails are generally cut uniformly.

What is the best way to measure a rifle front sight height?

The most accurate method is to remove the existing front sight and measure its total height, including the dovetail, using dial calipers. This provides a precise measurement for ordering a replacement.

What if I can't remove the rifle sight to measure it?

If you cannot remove the sight, measure from the top of the barrel to the top of the sight. Then, add 90 thousandths of an inch to this measurement to approximate the correct sight height, as 90 thousandths is the average dovetail size.

Why is measuring rifle sight height important?

Accurately measuring rifle sight height is crucial to ensure your new front sight will align correctly with your rear sight, allowing for proper zeroing and accurate shooting. Incorrect height can lead to significant aiming errors.

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