Are Closed Emitters A Fad? | Holosun 509T

Published on July 14, 2022
Duration: 11:10

This video analyzes the Holosun 509T, a closed-emitter optic, discussing its suitability for various firearm platforms. The presenter, Brassfacts, highlights that while closed emitters offer protection from elements, their application depends on the specific use case. The 509T is deemed ideal for open-carry handguns and offset/piggyback rifle mounts due to its durability, but less so for rifles due to parallax and battery life concerns. For concealed carry, the benefits are debated against potential printing issues and the practicality of open-emitter sights.

Quick Summary

Closed emitter optics, like the Holosun 509T, offer superior protection against environmental elements such as rain and debris, ensuring a clear reticle. While ideal for open-carry handguns and offset rifle mounts due to durability, their use on rifles is limited by battery life and parallax, and their benefit for concealed carry is debated against potential printing issues.

Chapters

  1. 00:00Introduction: Closed Emitter Optics Fad
  2. 00:46Holosun 509T Overview & Gen 1 vs Gen 2
  3. 01:38509T Gen 1 vs RMR Gen 1 Comparison
  4. 02:14509T Versatility: Pistol, Offset, Piggyback
  5. 02:37509T Mounting Considerations
  6. 03:01509T for Pistol Mounted Use
  7. 03:32What is a Closed Emitter Optic?
  8. 03:54Closed Emitters for Concealed Carry
  9. 04:50509T for Open Carry & Duty Use
  10. 05:17509T for Rifle Usage
  11. 05:38Battery Life & Parallax on Rifles
  12. 06:37509T as Offset/Piggyback Optic
  13. 07:37509T as ACOG Piggyback (X1 No-Go)
  14. 08:08509T on Flux Raider & Parallax
  15. 08:19509T for PCC Usage
  16. 08:51509T Night Vision Performance
  17. 09:40509T Giveaway

Frequently Asked Questions

What are the main advantages of a closed emitter optic like the Holosun 509T?

Closed emitter optics protect the emitter from environmental factors such as rain, debris, and dust. This protection prevents the reticle from being distorted or obscured, ensuring a clear sight picture even in adverse conditions, which is a significant advantage over open emitter designs.

Is the Holosun 509T suitable for concealed carry?

The suitability of the 509T for concealed carry is debated. While it offers protection, the chances of debris affecting the emitter are low in typical concealed carry scenarios. Additionally, its larger profile may cause more printing than smaller open-emitter sights, making it less ideal for some users.

Why is the Holosun 509T not recommended for rifle use?

The 509T is not ideal for rifles due to its smaller, less common battery, shorter battery life, and a sharper emitter angle that leads to increased parallax error at longer distances. Its mounting interface is also considered overly complex for rifle applications.

How does the Holosun 509T perform as an offset or piggyback optic on a rifle?

The 509T performs well as an offset or 12 o'clock piggyback optic on rifles. It offers enhanced durability and protection against environmental hazards, preventing the optic from being damaged if the rifle tips over or is placed in dirt, unlike open-emitter sights.

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