The Ultimate Guide To Red Dots | Types And Options

Published on December 30, 2023
Duration: 19:31

This guide breaks down the fundamental differences between open and closed emitter red dot sights, explaining their implications for durability and maintenance. It also touches on the visual impact of different optic housing shapes and lens designs, such as the perceived larger field of view offered by domed optics. The information aims to help users make informed decisions when selecting a red dot sight.

Quick Summary

Closed emitter red dot sights offer superior protection against debris and moisture by fully enclosing the emitter within the housing. This design ensures the red dot remains visible and functional, unlike open emitters which can be obstructed. The cost difference is often negligible, making closed emitters a practical choice for enhanced durability.

Chapters

  1. 00:00Introduction to Red Dot Sights
  2. 00:44Red Dot Sight Sizes and Shapes
  3. 00:53Open Emitter Red Dots Explained
  4. 01:56How Open Emitters Work
  5. 02:50Closed Emitter Red Dots Explained
  6. 03:28Preference: Closed Emitter
  7. 03:53Closed Emitter Lens Protection
  8. 04:44Optic Housing Shapes
  9. 04:52RMR Footprint and Robustness
  10. 05:41Domed Optic Lens Design
  11. 06:17Example Optics: EPS Carry
  12. 06:41Red Dot Sight Features: Solar Panel
  13. 07:01Auto-Adjust Brightness Feature
  14. 08:42Battery Installation and Replacement
  15. 09:45Mounting Systems and Sight Height
  16. 10:25Why Sight Height Matters
  17. 11:01Co-Witnessing Iron Sights
  18. 11:43Optic Footprints and Mounting Plates
  19. 13:00Battery Life Considerations
  20. 13:16Green vs. Red Reticle Battery Life
  21. 13:41Shake-Awake Feature
  22. 14:09Red Dot Reticle Types
  23. 15:06Reticle Colors: Red vs. Green
  24. 15:16Dot Sizes (MOA)
  25. 15:59Carry Gun Optic Example
  26. 16:07Benefits and Drawbacks of Red Dots
  27. 16:44Holster Considerations for Optics
  28. 17:37Tactical Holster for Optics and Lights
  29. 17:53Conclusion and Key Takeaways

Frequently Asked Questions

What is the main difference between open and closed emitter red dot sights?

The primary difference lies in the emitter's exposure. Open emitters have an exposed projector that can be obstructed by debris or moisture, potentially affecting the dot. Closed emitters fully enclose the projector within the housing, offering better protection and reliability against environmental factors.

Are closed emitter red dot sights more expensive than open emitters?

According to firearm instructors, the cost difference between open and closed emitter red dot sights is often negligible. This makes closed emitters a practical and often preferred choice for users seeking enhanced durability and protection without a significant price increase.

How does the shape of a red dot sight's lens affect its performance?

While housing shapes vary for robustness, some lens designs, particularly domed ones, can offer a larger or perceived larger field of view. This can aid in faster target acquisition by providing more visual space around the aiming dot.

Why is it important for a red dot sight to be a closed emitter design?

A closed emitter design protects the internal components, specifically the emitter, from environmental hazards like dust, dirt, water, and lint. This protection ensures the red dot remains visible and functional, reducing the risk of failure in critical situations.

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