The OPTIC That Lasts 10 Years Without BATTERIES | Meprolight M21 Review

Published on September 21, 2023
Duration: 8:34

The Meprolight M21 is a durable, battery-free reflex sight utilizing fiber optics and tritium for illumination. It offers a large field of view and is built to military specifications, making it suitable for various platforms. While prone to washout in bright conditions, accessories like polarizing lenses can mitigate this issue.

Quick Summary

The Meprolight M21 is a unique reflex sight that operates without batteries, using fiber optics for daytime illumination and tritium for nighttime. It's built to military specifications for extreme durability and offers a 10-year warranty on its tritium and a lifetime warranty on its fiber optics.

Chapters

  1. 00:00Introduction to Meprolight M21 Review
  2. 00:22Sponsor: American Marksman
  3. 00:40Meprolight M21 Overview & History
  4. 01:12Fiber Optic and Tritium Illumination Explained
  5. 01:41Meprolight Warranties
  6. 02:06Expected Lifespan of the M21
  7. 02:25Build Quality and Durability
  8. 02:56QD Mount and Adjustments
  9. 03:23Optic Tint and Anti-Glare Coating
  10. 03:51The Washout Con and Solutions
  11. 04:47Combatting Washout with LED
  12. 05:15M21's Two-Decade Legacy
  13. 05:32Aesthetics and Versatility
  14. 05:55Magnifier Compatibility
  15. 06:06Included Accessories
  16. 06:23M21 Packaging and Options
  17. 06:53Key Features: Always On, Rapid Acquisition
  18. 07:03Field of View and Eye Relief
  19. 07:17MIL-STD Qualification
  20. 07:23Meprolight M21 Price and Value
  21. 07:35Discount Code and Blog Post
  22. 07:58Sponsorship Acknowledgement
  23. 08:03Upcoming Reviews
  24. 08:18Meprolight USA Location
  25. 08:24Outro

Frequently Asked Questions

What makes the Meprolight M21 optic unique?

The Meprolight M21 is unique because it's a battery-free reflex sight. It utilizes a combination of fiber optics for daytime illumination and tritium for nighttime, ensuring the reticle is always visible without needing external power sources.

How does the Meprolight M21 handle different lighting conditions?

For daytime, the M21 uses ambient light captured by its fiber optic system to illuminate the reticle. At night, stored energy from ambient light causes the tritium to glow, providing a constant aiming point without batteries.

What is the main disadvantage of the Meprolight M21 optic?

The primary disadvantage of the Meprolight M21 is 'washout.' This occurs when looking from a darker area into an extremely bright environment, causing the bright exterior light to overpower the reticle's illumination, making it hard to see.

What is the expected lifespan and warranty for the Meprolight M21?

The Meprolight M21's tritium has a 10-year warranty, and the fiber optic component comes with a lifetime warranty. The optic itself is generally expected to last around 15 years or more with proper care.

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