Q&A for Primary Arms Holosun HE509-RD Enclosed Solar Powered Red Dot Sight

Q

Robert, guest, from CA, United States, asked on May 19, 2024

Would I need to run adapter plates and suppressed height sights for Glock 34 Gen 5????

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on May 20, 2024

The Holosun HE509-RD Enclosed Solar Powered Red Dot Sight includes a Glock MOS adapter plate in the box. So as long as you have an MOS (Optic Ready) model Glock 34 you will be able to install this optic using the adapter plate included in the box. To co-witness with the optic, you would need to use suppressor height sights. If you do not have an MOS model Glock 34, you will not be able to install this optic.

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Q

Xinthisis, member, from NC, United States, asked on January 13, 2023

Will this optic fit on an ADM QD mount? I plan to run it as a piggy back optic on my AR at the 12 oclock on my lpvo.

Expert Answer

A

Answered by Hunter, Gear Expert, from OH, United States, on April 24, 2023

The Holosun HE509-RD Enclosed Solar Powered Red Dot Sight has a proprietary footprint but has an RMR footprint adapter plate. So if you use an RMR compatible piggy back mount of some sort plus the Holosun HE509-RD Enclosed Solar Powered Red Dot Sight RMR adapter plate it could work but would sit pretty high.

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Q

d.west, guest, from TX, United States, asked on December 29, 2022

Will this sight fit on the Canik Rival?

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on January 11, 2023

The Holosun HE509-RD Enclosed Solar Powered Red Dot Sight can fit your Canik Rival but will have a tall deck height. You will first need to install the RMR adapter plate included with your Canik to your slide. You will then need to install the RMR adapter plate included with this optic, then the optic will mount to that plate. Because 2 plates will have to be used it will sit a little high but would still function as intended.

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Q

maddog1947, member, from KS, United States, asked on December 01, 2022

does this sight use the holosun k foot print?

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on December 01, 2022

The Holosun HE509-RD Enclosed Solar Powered Red Dot Sight does not use the Holosun K footprint. It is a proprietary design similar to the Aimpoint ACRO. It will fit any optic ready slide designed to fit the Trijicon RMR. It includes an adapter plate that will mount to RMR cut slides which will then allow this optic to mount to the plate.

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Q

Dre, member, from NC, United States, asked on September 17, 2022

why is this red dot not on their website. And what is the difference with the HE509T-X2 ??? Thanks

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on September 20, 2022

This Holosun Enclosed Solar Powered Red Dot Sight uses the ACSS reticle and includes an MOS mounting plate to directly mount to MOS model Glocks. Other models of the 509T are offered with Holosuns 2 MOA dot and 32 MOA circle, not the ACSS reticle, and include an RMR adapter plate, not an MOS plate. For more information, feel free to email us at Techsales@opticsplanet.com.

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Q

Robert Davis, member, from WA, United States, asked on July 04, 2022

what footprint does this sight use. I'm looking for something with an RMSc footprint that isn't Crimson Trace, Romeo Zero or Swampjunk.

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on July 18, 2022

This Holosun Enclosed Solar Powered Red Dot Sight uses a proprietary footprint and is not compatible with RMSc cuts. I'd recommend the Shield RMSc or Holosun 507K. Both can be found by using the links below:
https://www.opticsplanet.com/shield-sights-compact-reflex-mini-red-dot-sight.html
https://www.opticsplanet.com/holosun-sub-compact-hs507k-x2-red-dot-sights.html

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Q

Billy, guest, from TX, United States, asked on February 22, 2026

What adapter plate would I use for a kimber 2k11? Why in the world would you come up with your own footprint?

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Q

Ty, member, from AL, United States, asked on January 02, 2026

Will this work on a gen 5 glock 20 10mm ?

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Q

Oregon, member, from OR, United States, asked on August 29, 2025

I have a GEN5 G19 MOS. Do I need a specific adapter plate that is designed to fit the GEN5?

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Q

Derick Edmund, member, from PA, United States, asked on August 22, 2024

Can I directly install this in a Walther PDP compact

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Q&A for Primary Arms Holosun HE509-RD Enclosed Solar Powered Red Dot Sight — 14 Questions & 6 Answers