How To Easily Zero / Sight In An Optic On Your AR15 🎯

Published on September 1, 2025
Duration: 8:28

This guide details how to easily zero a red dot optic on an AR-15 or similar rifle. It emphasizes stabilizing the shooting platform with bags, adjusting optic brightness, accurately measuring distance, and calculating click adjustments based on MOA and range. The process is repeatable for achieving a precise zero.

Quick Summary

To easily zero an AR-15 red dot optic, stabilize your rifle with shooting bags, adjust optic brightness to the lowest visible setting, and accurately measure your target distance. Calculate click adjustments based on the optic's MOA per click and the zeroing range to achieve precise shot placement.

Chapters

  1. 00:00Introduction to Optic Zeroing
  2. 00:21Understanding Optic Adjustments (MOA)
  3. 01:01Stabilizing the Shooting Platform
  4. 01:55Measuring Distance Accurately
  5. 02:14Optimizing Optic Brightness
  6. 02:41Firing Initial Groups
  7. 03:01Proper Shooting Position
  8. 03:57Analyzing Grouping and Measuring Offset
  9. 04:15Calculating Click Adjustments
  10. 04:30Making Windage and Elevation Adjustments
  11. 05:15Verifying Adjustments with New Group
  12. 07:25Zeroing a Magnifier

Frequently Asked Questions

How do I calculate optic adjustments for zeroing at different distances?

To calculate optic adjustments, first determine your optic's MOA (Minute of Angle) per click from its manual. Then, divide the desired impact shift (in inches) by the MOA value converted to inches at your target distance. For example, at 50 yards, 0.5 MOA per click adjusts 0.25 inches per click.

What is the best way to stabilize a rifle for accurate zeroing?

For accurate zeroing, stabilize the rifle using shooting bags. A front bag should support the handguard, and a rear bag should support the stock. This minimizes human input and error, creating a consistent shooting platform for precise shots.

How should I set the brightness on my red dot optic for zeroing?

Set your red dot optic's brightness to the lowest setting that still allows you to clearly see the reticle or dot. This prevents the reticle from blooming, which makes it appear larger and can obscure your target, ensuring a more precise aiming point.

What is MOA and how does it relate to optic adjustments?

MOA stands for Minute of Angle, a unit of measurement for optics. One MOA is roughly 1.047 inches at 100 yards. If your optic has 0.5 MOA per click, each click will move your point of impact by approximately 0.5235 inches at 100 yards, or 0.26175 inches at 50 yards.

Related News

All News →

More Training & Techniques Videos You Might Like

More from Gear And Guns

View all →