High Power Laser For Cheap?: Perst 4 [Review]

Published on March 14, 2020
Duration: 10:33

This review of the Zenit Perst-4 IR/Visible laser highlights its powerful IR laser, competitive pricing, and compact design. While the visible laser is weak in daylight, the IR performance is strong for its class. The unit features independent power adjustment and intuitive controls, though build quality concerns like stripped screws and a detached tape switch retainer were noted. The lack of an integrated IR illuminator is a significant drawback for extended range or very dark environments.

Quick Summary

The Zenit Perst-4 offers a powerful 25mW IR laser, a significant upgrade over typical 5mW units, making it a strong contender for night vision applications. While its visible laser is weak in daylight, the IR performance is notable. However, the lack of an integrated IR illuminator limits its effectiveness as a primary night vision aiming device for extended ranges.

Chapters

  1. 01:45Introduction to Perst-4
  2. 02:13Price and Model Variants
  3. 02:24Design and Power Source
  4. 02:32Laser Type: IR/Visible Only
  5. 02:40Visible Laser Performance
  6. 03:08Physical Examination
  7. 03:24Controls and Operation
  8. 03:40Full Power IR Laser Warning
  9. 03:56Button Functionality
  10. 04:25Mounting and Iron Sights
  11. 04:40Co-Aligned Lasers for Zeroing
  12. 04:55Windage and Elevation Adjustments
  13. 05:07Light Mounting Considerations
  14. 05:24Tape Switch Details
  15. 06:00Water Resistance and Durability
  16. 06:14Warranty Information
  17. 06:23User Experience and Performance
  18. 06:38Advertised Functionality Review
  19. 06:50Size Comparison
  20. 07:07Build Quality Assessment
  21. 07:44IR Laser Effectiveness
  22. 08:01Toughness and Reliability
  23. 08:25Should You Buy It?
  24. 08:38Lack of Illuminator Drawback
  25. 08:43Philosophy of Use
  26. 09:30Alternative Setups
  27. 09:57Final Verdict and Niche

Frequently Asked Questions

What is the main advantage of the Zenit Perst-4 IR laser?

The primary advantage of the Zenit Perst-4 is its powerful 25 milliwatt IR laser, which is significantly stronger than the 5 milliwatt limit found on many other commercial IR lasers, offering better performance for night vision applications.

How does the visible laser on the Perst-4 perform?

The visible laser on the Perst-4 is functional indoors and at night but is considered weak in broad daylight, with an effective range of only about 15 yards in medium daylight conditions.

What are the build quality concerns with the Zenit Perst-4?

While the overall design is robust, some users have reported build quality issues such as stripped screws upon arrival and a detached tape switch retainer, suggesting potential over-torquing or manufacturing defects.

Is the Zenit Perst-4 suitable for primary night vision use?

The Perst-4 is generally not considered ideal for primary night vision use due to the absence of an integrated IR illuminator. This limitation significantly impacts target acquisition and engagement at distances beyond 25-50 yards in very dark environments.

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