HOLOSUN HE509 – ACSS Vulcan Reticle

5 customer reviews



The HE509 is an enclosed reflex optical sight designed for pistol applications. Features include a Aluminum housing, Holosun’s Super LED with up to 50k hours battery life, ACSS Reticle, Solar Failsafe, and Shake Awake.

NOTE: The HE509 ACSS is not the same footprint as the HE509T

In the Box

  • RMR or MOS Adapter Plate
  • T10 L Key
  • User Manual
  • CR1632 Battery
  • Lens Cloth

In most cases in stock optics ship within 24 hours with a tracking number.


SKU: 509-ACSS Categories: , , ,


Additional information

Weight 0.375 lbs
Mount Adapter Plate


Based on 5 reviews
Write a Review

  1. rcognion22 (verified owner)

    The 509 acss is my second handgun red dot and first closed emitter. I was originally looking at the 507c and I am glad I ended up going with the 509. I was concerned the acss would be small and hard to see like it is in my 403 with the acss reticle and that is not the case. The chevron reticle in the red dot is the perfect size. Also the outer ring is great to help with new red dot users to help find the dot. And as always, with tacrig, they had it to my door very quickly and with exceptional customer service. Can’t recommend either one enough!!

  2. Hon Leung Chan (verified owner)

    Love the optic but wish it has the 509T footprint. TACRIG is easy to work with and the shipping was great!

  3. Scott Knapp (verified owner)

    509 is an incredible optic, and the ACSS Vulcan reticle is one of the most practically innovative things released in recent years for the firearms industry.

    Having its own footprint is pretty annoying, but reasonably manageable, and worth it as the only closed emitter ACSS option

  4. Trevor Wright (verified owner)

    Great Reticle, Great Options and as always from TACRIG Great Price! Can’t say enough about how well this optic preformed for me. Its fast up close while also allowing for precision, and I love the BDC properties of the Chevron. If they put it out in Green I may be swapping out a handful of my other pistol optics

  5. Dominique (verified owner)

    Fast shipping! Will order again

Add a review

Your email address will not be published. Required fields are marked *