How To Zero AR-15 Iron Sights (HD)

Published on September 1, 2013
Duration: 6:16

This guide details how to zero AR-15 iron sights, as demonstrated by Mrgunsngear, an established subject matter expert. It covers using a 25-meter target, proper shooting technique, and making precise adjustments to the front and rear sights. The instruction emphasizes understanding mechanical offset and trajectory for accurate shooting.

Quick Summary

Zeroing AR-15 iron sights involves establishing a consistent point of impact at a set distance, typically 25 meters. This requires analyzing shot groups and making precise adjustments to the front sight post for elevation and the rear sight for windage, while maintaining a stable shooting position and supporting the handguard, not the barrel.

Chapters

  1. 00:00Introduction & Topic
  2. 00:20Equipment & Target Overview
  3. 01:00Shooting Position & Technique
  4. 02:25Initial Group Analysis
  5. 02:52Front Sight Adjustment
  6. 03:24Rear Sight Adjustment
  7. 04:12Final Zeroing & Confirmation
  8. 04:50Zero Distance Philosophy

Frequently Asked Questions

What is the recommended method for zeroing AR-15 iron sights?

A common method is the 25-meter zero, using a standard military target. This involves firing a group, analyzing its position, and making incremental adjustments to the front sight post (elevation) and rear sight (windage) until shots consistently hit the center.

How do you adjust the front sight post for elevation on an AR-15?

For an A2-style front sight post, use a dedicated tool. To raise the point of impact on the target, you must turn the adjustment knob clockwise, which lowers the front sight post itself.

What is the importance of supporting the handguard and not the barrel when zeroing?

Supporting the barrel can cause it to flex or heat unevenly, altering the point of impact. Supporting the handguard provides a more stable and consistent platform, ensuring that sight adjustments accurately reflect the rifle's true aiming point.

Why is a 25-meter zero often preferred for AR-15s?

A 25-meter zero provides a relatively flat trajectory for the 5.56x45mm NATO/.223 Remington cartridge, allowing for point-of-aim, point-of-impact accuracy out to approximately 250 meters with minimal hold-over adjustments.

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