UPDATE & UPGRADES | MAC9 DS Comp 5” w/ HOLOSUN 507 and Surefire X300

Published on August 14, 2025
Duration: 17:32

This video demonstrates the process of zeroing a Holosun 407C red dot optic on a MAC9 DS Comp 5-inch pistol. The instructor walks through the steps of firing initial shots, observing impact, and making necessary adjustments to the optic's turrets. The session also includes shooting drills on steel targets and paper, highlighting the firearm's performance with its upgrades.

Quick Summary

To zero a red dot sight on a pistol, fire a shot, observe its impact, and adjust the optic's elevation and windage turrets. Make incremental adjustments until your point of impact consistently matches your point of aim for accurate shooting.

Chapters

  1. 00:00Introduction & Upgrades
  2. 00:08Adding Red Dot to MAC9 DS Comp 5"
  3. 00:40Visual Overview of Upgraded Pistol
  4. 01:38Completed MAC9 DS Comp 5" Look
  5. 02:01Comparison: 5" vs 4.25" MAC9 DS
  6. 03:42First Shots & Zeroing Process
  7. 04:04First Shot Analysis & Adjustment
  8. 04:53Second Shot & Further Adjustments
  9. 05:31Focusing on Red Dot Sight
  10. 06:11Shooting Without Adjustments
  11. 06:26Shot Group Analysis (Paper)
  12. 08:07Steel Target Shooting
  13. 08:34Enjoying the Shoot
  14. 09:09MAC9 DS Comp 5" Performance
  15. 10:04Satisfied with Weight & Feel
  16. 10:30Speed Shooting Drills
  17. 10:51Alternating Magazines
  18. 12:02Satisfaction of Steel Hits
  19. 13:24Post-Drill Assessment
  20. 14:02Optic Power Check
  21. 14:20Return to Paper Target
  22. 15:07Pistol Heat Observation
  23. 15:58Paper Target Group Analysis
  24. 16:24Zeroing Success Assessment
  25. 16:33Final Firearm & Optic Recap
  26. 17:05Overall Satisfaction & Call to Action

Frequently Asked Questions

How do you zero a red dot sight on a pistol?

To zero a red dot sight, first ensure the firearm is safely handled. Fire a shot at your target, observe where it lands relative to your aim point, and then adjust the optic's elevation and windage turrets accordingly. Fire more shots, making incremental adjustments until your point of impact matches your point of aim.

What are the benefits of adding a red dot sight to a pistol?

Red dot sights can significantly improve target acquisition speed and accuracy, especially for follow-up shots. They offer a more intuitive aiming experience by projecting a visible dot onto the target, which can be particularly beneficial for shooters who struggle with traditional iron sights.

What is the MAC9 DS Comp 5"?

The MAC9 DS Comp 5" is a double-stack 1911 pistol manufactured by Military Armament Corporation. It features a 5-inch barrel and a compensator designed to help reduce muzzle rise during firing, making it a more stable platform.

What accessories were added to the MAC9 DS Comp 5"?

The MAC9 DS Comp 5" in the video was upgraded with a Holosun 407C red dot sight, which includes a solar panel, and a Surefire X300 weapon-mounted light. These additions enhance the pistol's functionality and aesthetics.

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