Beginner Series - Things You Need to Know about Red Dot Sights

Published on May 5, 2026
Duration: 14:15

This guide covers the essential steps for mounting a red dot sight, emphasizing the importance of using blue Loctite for secure installation and creating witness marks with a paint pen. Witness marks serve as a visual indicator to detect if screws begin to back out, ensuring the optic remains securely attached. The video highlights different mounting plate systems and the benefits of using well-labeled hardware for a smoother installation process.

Quick Summary

When mounting a red dot sight, use blue Loctite on all screws to prevent loosening from recoil and create witness marks with a paint pen. This allows for easy visual checks to ensure screws remain tight, maintaining optic security and zero. Larger window sizes and 2-3 MOA dots are generally preferred for faster target acquisition and precision.

Chapters

  1. 00:01Introduction to Red Dots for Beginners
  2. 00:23Red Dot Mounting Options & Plate Systems
  3. 01:47Benefits of Optic Plate Systems
  4. 02:03Importance of Secure Mounting
  5. 02:39Mounting Tips: Blue Loctite & Witness Marks
  6. 03:08Materials and Quality of Optic Plates
  7. 04:05Open vs. Closed Emitter Red Dots
  8. 06:23Red Dot Window Size Considerations
  9. 08:01Red Dot Dot Size (MOA) Explained
  10. 09:27Red Dot Brightness Settings
  11. 10:41Recommended Red Dot Models
  12. 11:15Red vs. Green Dot Preference
  13. 12:30Importance of Witness Marks Revisited
  14. 13:00Red Dot Battery Life & Maintenance
  15. 13:47Red Dots vs. Iron Sights

Frequently Asked Questions

What are the key considerations when mounting a red dot sight?

When mounting a red dot, ensure your firearm's slide is compatible with the optic or uses an optic plate system. Always use blue Loctite on mounting screws to prevent loosening from recoil. Creating witness marks with a paint pen is crucial for easily detecting if screws back out, maintaining optic security and zero.

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

Open emitter red dots have an exposed LED emitter, which is more vulnerable to debris. Closed emitter red dots fully enclose the emitter, providing better protection against elements like rain, mud, and dirt, making them potentially more reliable in harsh conditions.

How does red dot window size and dot MOA affect shooting?

A larger red dot window generally aids in faster target acquisition, especially with imperfect firearm indexing. The MOA (Minute of Angle) of the dot, typically 2-3 MOA for general use, affects precision; smaller dots cover less of the target at distance, while larger dots can be easier to see but may obscure smaller targets.

What is the recommended battery life and usage for red dot sights?

Most red dot sight batteries last about a year. For firearms intended for self-defense or carry, it's recommended to leave the red dot on continuously. This ensures immediate readiness, as the battery life is sufficient to last over a year, and turning it on and off frequently can wear out buttons.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from Joel Park

View all →