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Q&A for Holosun HS510C 1x0.91-1.2in Open Reflex Red Dot Sight — 178 Questions & 149 Answers

Name Holosun HS510C 1x0.91-1.2in Open Reflex Red Dot Sight (4.7)
As Low As $309.99 Save 15%
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Q
Kabley, member, from FL, United States, asked on June 08, 2019

Will the HS510C cowitness with Troy micro sights?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on September 09, 2019

This optic has a 1.41" optical center which is approximately an absolute co-witness for standard height AR iron sights. The Troy micro battle sights are lower than standard height iron sights so this red dot should be around a lower 1/3 co-witness with the Troy micro sights.

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Q
Bronan83, member, from MD, United States, asked on July 21, 2022

Would this be too large to be used to use as a 45° angle red dot on an AR?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on August 03, 2022

Yes, the Holosun HS510C 2 MOA Dot & 65 MOA Circle Feflex Red Dot Sight would most likely be too large to be mounted at a 45 degree offset.

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Q
R8, guest, from BC, Canada, asked on July 07, 2020

Does the 510 sit too high on a Marlin 1895 SBL and is there a lower riser for it?

Expert Answer
A
Answered by Kevin, Gear Expert, from IL, United States, on October 17, 2020

You could mount this to the picatinny rail on the Marlin 1895 SBL but it will mount at AR height and the stock on the marlin will is considerably lower than an AR stock possibly making this optic difficult to use. It is a popular option on many lever action rifles to use a large window pistol red dot on a low picatinny mount. If you have any questions or need more detailed information you can E-mail us at techsales@opticsplanet.com.

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Q
Erick, member, from FL, United States, asked on February 06, 2018

What riser/mount would work for the HS510c if a Lower 1/3 Co Witness were desired?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on March 22, 2018

Holosun does make a riser for the HS510C, unfortunately we do not carry it. Here is a link to the manufacturer's website for the item:

https://holosun.com/index.php?main_page=product_info&products_id=72

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Q
Jim Donovan, member, from IL, United States, asked on November 27, 2024

Is that qr mount for a picatiny rail?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on November 27, 2024

Yes, the Holosun HS510C 1x0.91-1.2in Open Reflex Red Dot Sight mounts to a picatinny rail.

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Q
Gabe321, member, from CA, United States, asked on May 09, 2024

Can you co-witness with AK iron sights?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 09, 2024

The Holosun HS510C 1x0.91-1.2in Open Reflex Red Dot Sight sits at a 1.41" (absolute) centerline height. This means it will likely be too tall to co-witness with standard AK iron sights.

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Q
hunter, member, from TX, United States, asked on March 17, 2024

Will this co witness with A2 sight?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 18, 2024

Yes, the Holosun HS510C Open Reflex Red Dot Sight has a centerline height of 1.4", meaning it will co-witness with an A2 front sight.

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Q
Murph, member, from MA, United States, asked on February 03, 2023

Will the Holosun HS510C fit on a Weaver Rail? If not is there an adapter?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 12, 2023

The Holosun HS510C 1x 2 MOA Dot 65 MOA Circle Reflex Red Dot Sight will not fit a Weaver rail. We currently do not have an adapter for it.

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Q
Art, guest, from TX, United States, asked on February 01, 2023

Is the HM3XT Magnifier available by itself and will it align properly and work with the HS 510C green dot sight?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on October 11, 2023

The Holosun HM3XT Magnifier can be found at the link below and it will align with the Holosun HS510C 1x 2 MOA Dot 65 MOA Circle Reflex Red Dot Sight.
https://www.opticsplanet.com/holosun-hm3xti-hm-magnifier-3x-37-ft-100-yds-fov-black-finish.html

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Q
JR, guest, from SC, United States, asked on January 03, 2023

Will this sight fit Glock 19 MOS Gen 5

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on January 25, 2023

The Holosun HS510C 2 MOA Dot 65 MOA Circle Reflex Red Dot Sight is not compatible with a Glock 19 MOS. Your MOS model Glock included 4 adapter plates to mount optics with the RMR, DeltaPoint Pro, Docter, and C-MORE footprints. This means you can install micro-optics like the Trijicon RMR, Holosun 507C, Leupold Deltapoint Pro, Eotech EFLX, Vortex Viper and more.

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