Holosun 509T Pistol Red Dot Review - A Worthy Successor?

Published on January 26, 2021
Duration: 11:29

This guide details the installation and adjustment of the Holosun 509T pistol red dot sight, drawing from expert instruction. It covers mounting procedures for various pistol platforms, including Glock MOS and RMR-cut slides, and explains the adjustment mechanisms for windage and elevation. The guide also provides instructions for battery replacement, reticle switching, and operating modes like manual control and lockout, emphasizing practical user experience and technical specifications.

Quick Summary

The Holosun 509T pistol red dot sight offers enhanced durability with its enclosed emitter and titanium construction. It features a dual-pane glass system, providing a choice between a circle-dot or single 2 MOA dot reticle. Battery life is exceptional, reaching up to 50,000 hours on the single dot setting, and it includes a configurable Shake Awake feature.

Chapters

  1. 00:28Introduction to Holosun 509T
  2. 01:06Profile and Dimensions Comparison
  3. 01:34Height and Holster Compatibility
  4. 01:54Weight and Mounting Details
  5. 02:37Mounting with IWI Masada
  6. 03:27Exterior Controls and Adjustments
  7. 03:52Battery Tray and Brightness Buttons
  8. 04:53Powering On/Off and Modes
  9. 05:37Glass Quality and Distortion
  10. 06:25Color Cast and Reticle Brightness
  11. 07:05Reticle Options and Battery Life
  12. 07:42Operating Modes
  13. 09:04Shake Awake Functionality
  14. 09:21Feature Richness and User Experience
  15. 10:10Final Verdict and Recommendations

Frequently Asked Questions

What are the key differences between the Holosun 509T and 508T V2?

The 509T features an enclosed emitter and titanium construction for enhanced durability, while the 508T V2 also uses titanium but has an open emitter. The 509T exhibits more glass distortion due to its dual-pane design compared to the 508T's single pane.

How is the Holosun 509T mounted, and what are potential height issues?

The 509T mounts to an RMR pattern but requires its own adapter plate, increasing height. For Glock MOS pistols, a specific Holosun adapter plate is needed. Stacking adapter plates can significantly raise the optic, increasing height over bore.

What are the reticle options and battery life of the Holosun 509T?

The 509T offers a 2 MOA dot with a 32 MOA ring, or a single 2 MOA dot. Battery life is impressive, rated at 12,000 hours for the circle-dot and 50,000 hours for the single dot at setting 6.

Does the Holosun 509T have a Shake Awake feature?

Yes, the Holosun 509T includes a configurable Shake Awake function that turns the reticle off after inactivity. The inactivity timer can be set to 10 minutes, 1 hour, 12 hours, or disabled entirely.

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