The IRIS GR4 is THE Best Laser For The Money

Published on April 19, 2026
Duration: 12:34

This video provides an expert-level review of the Holosun IRIS GR4 laser aiming device, highlighting its value proposition for the price point. The instructor, Kyle from 4MR Ranch, emphasizes its reliability, compact form factor, and multi-functionality, including IR illuminator, IR laser, visible laser, and a strong white light. He details its performance on a SCAR 17 and discusses its suitability for duty use, recommending it as a top-tier option for self-funded law enforcement officers.

Quick Summary

The Holosun IRIS GR4 is highly recommended as a top value laser for its price point, offering four essential functions: IR illuminator, IR laser, visible laser, and a powerful white light. Its exceptional reliability, demonstrated through SCAR 17 testing and drop tests, makes it a trusted option for duty use, especially for self-funded law enforcement officers.

Chapters

  1. 00:03Introduction and IRIS GR4 Overview
  2. 00:164MR Ranch Introduction & Initial Verdict
  3. 00:40Laser Tier Comparison Context
  4. 01:03IRIS Line Explained: 4-in-1 Device
  5. 01:24Patreon Giveaways & Sponsor Shoutouts
  6. 02:09Transparency: Holosun IRIS GR4 Provided
  7. 02:31IRIS GR4 Unit Overview & Controls
  8. 03:14Battery Options: 18650 vs CR123
  9. 03:40Testing Methodology & Reliability
  10. 04:00Diode Alignment & Internal Quality
  11. 04:50Form Factor & Feature Implementation
  12. 05:01IR Aiming Laser Performance
  13. 05:22IR Illuminator Performance & Adjustments
  14. 05:42Focus on White Light Output
  15. 06:04White Light Usefulness & Power Source Perk
  16. 06:37White Light Performance Data
  17. 07:16Reliability: SCAR 17 Testing
  18. 07:34HSM Ammunition Support
  19. 07:47Zeroing Process & Testing Protocol
  20. 08:12Mounting to Monolithic Receiver
  21. 08:27Torque Specs & Post-Fire Grouping
  22. 08:50SCAR 17 Zero Hold Performance
  23. 09:00Final Target Analysis
  24. 09:16IRIS GR4 Passes SCAR 17 Test
  25. 09:41Behind the Scenes: Lobo the Dog
  26. 10:20Performance & Reliability Summary
  27. 10:30Illuminator Output Discussion
  28. 10:43Practical Range Testing (500 Yards)
  29. 10:57Final Recommendation: IRIS GR4
  30. 11:14Comparison: IRIS GR4 vs. Trinity
  31. 11:39Recommendation: IRIS GR4 vs. GR3
  32. 11:53Best for the Money Statement
  33. 12:01Duty Use Recommendation for Law Enforcement
  34. 12:26Conclusion & Thanks

Frequently Asked Questions

What makes the Holosun IRIS GR4 a good value for its price?

The Holosun IRIS GR4 is considered a top value purchase because it offers four essential functions (IR illuminator, IR laser, visible laser, white light) in a compact, reliable package for around $1,000. This price point provides extreme value compared to other lasers on the market, especially considering its robust performance and durability.

How reliable is the Holosun IRIS GR4 under stress?

The Holosun IRIS GR4 has demonstrated exceptional reliability in testing, including extensive live fire on a SCAR 17 and drop tests. The reviewer notes that the visible and IR lasers remain perfectly aligned, and the unit has held zero without issue, making it suitable for rugged use.

What are the key features of the Holosun IRIS GR4?

The IRIS GR4 is a 4-in-1 device featuring an IR illuminator with adjustable beam, an IR aiming laser, a visible green laser with override, and a powerful white light. It offers dual crane ports for synchronized activation and can be powered by 18650 or CR123 batteries.

Is the white light on the IRIS GR4 effective?

Yes, the white light on the IRIS GR4 is a significant feature, providing strong output that the reviewer considers effective enough to be used as a primary tactical light, comparable to dedicated weapon lights from major brands. It performs best when powered by an 18650 battery.

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