The Ultimate Budget 3x Magnifier? Holosun HM3X (Longest Eye Relief on the Market)

Published on March 29, 2026
Duration: 4:54

This video provides a comprehensive review and installation guide for the Holosun HM3X 3x magnifier. It highlights the magnifier's exceptional eye relief (2.75 inches), large field of view (37 ft at 100 yards), and durable aluminum construction. The review details the included QD mount, spacer for height adjustment, and ambidextrous flip-to-side design, positioning it as a high-value option at its $200 price point.

Quick Summary

The Holosun HM3X magnifier stands out with the longest eye relief on the market at 2.75 inches, offering superior comfort and mounting flexibility. It also features a wide 7° field of view (37 ft at 100 yards), a large 7.6mm exit pupil for better light gathering and eye alignment, and a durable aluminum construction.

Chapters

  1. 00:00Introduction: Eye Relief Problem
  2. 00:08Holosun HM3X Review & Installation
  3. 00:12Sight Picture & Eye Relief Demo
  4. 00:17Quick Detach (QD) Mount Features
  5. 00:23Monocular Use & Lens Clarity
  6. 00:27Field of View Comparison
  7. 00:37Field of View Measurement (37ft @ 100yds)
  8. 00:40Ambidextrous Design
  9. 00:45Mounting Heights (Absolute & Lower 1/3)
  10. 00:52QD Mount Retention Mechanism
  11. 00:56Recoil Lugs & Crossbolt
  12. 01:00Integrated Adjustment Tool
  13. 01:06Durable Housing & Mount
  14. 01:09Exit Pupil Benefits
  15. 01:24Included Lens Caps
  16. 01:37Diopter Adjustment Range
  17. 01:46Windage & Elevation Turrets
  18. 01:56Comparison to EOTech Magnifiers
  19. 02:04Weight Breakdown
  20. 02:13Length Dimensions
  21. 02:17Benefits of Long Eye Relief
  22. 02:23Submersible Rating & Durability
  23. 02:33Price Point & Value Proposition
  24. 02:43Installation: Switching Sides
  25. 02:55Installation: Adding Spacer
  26. 03:03Installation: Tightening Mount
  27. 03:08Installation: Clamp Operation
  28. 03:12Installation: Attaching to Rail
  29. 03:19Alignment with Holosun Red Dots
  30. 03:30Flip-to-Side Clearance
  31. 03:3690° Flip System Profile
  32. 03:42Unbeatable Value Conclusion
  33. 03:44Comparison to Expensive Magnifiers
  34. 03:51Key Features Recap
  35. 04:04Top Performance Factors: Eye Relief, Glass, FOV
  36. 04:12Diopter & Turret Controls
  37. 04:17Scope Cap & Integrated Tool
  38. 04:26Stock Length of Pull & Eye Relief Synergy
  39. 04:34Out-of-the-Box Versatility
  40. 04:37Overall Value & Bang for Buck
  41. 04:41Reviewer Disclosure
  42. 04:49Call to Action: Like, Comment, Subscribe

Frequently Asked Questions

What is the primary advantage of the Holosun HM3X magnifier?

The Holosun HM3X's main advantage is its exceptionally long eye relief of 2.75 inches, which is the longest on the market. This feature makes it much more comfortable to use and allows for greater flexibility in mounting position and stock adjustment.

How does the Holosun HM3X's field of view compare to other magnifiers?

The HM3X boasts a 7° field of view, translating to 37 feet at 100 yards. This is described as significantly larger than many competitors, even those that claim the same 7° specification, providing a wider view of the target area.

What mounting options are included with the Holosun HM3X?

The HM3X comes with a quick detach (QD) mount that allows for easy attachment and removal. It also includes a spacer to provide two mounting height options: absolute co-witness (1.41 inches) and lower 1/3 co-witness (1.63 inches).

Is the Holosun HM3X durable and weather-resistant?

Yes, the HM3X features a durable aluminum housing and mount. It is also submersible up to 3 feet for 30 minutes and is rated as waterproof, shockproof, and fogproof, making it suitable for various environmental conditions.

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