Holosun HS510C HUD Solar Powered Circle Dot Sight

Manufactured by Holosun
Manufactured by Holosun
14 Reviews

In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Standard orders will ship out the same business day if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Holosun HS510C Open Reflex Circle Dot Sight combines a super-wide field of view in a lightweight and feature-rich body perfect for your favorite rifle or carbine. The 510C has an impressive battery life of up to 50,000 hours on a single CR2032 battery, extended by the integrated Solar Failsafe and Shake Awake technology. The Solar Failsafe both provides an optimal brightness setting for your current ambient lighting, as well as allowing your sight to remain on even if the battery dies. To keep your battery going for as long as possible, this red dot sight features a user programmable sleep-mode that will automatically turn off the emitter until the optic's Shake Awake system senses movement and turns it back on. The HS510C also features a mutli-reticle system, allowing users to select one of three options: 65 MOA circle with 2 MOA center dot, only 2 MOA dot, and only 65 MOA circle, ensuring you have exactly the reticle you need for your purposes.

  • Large 32mm x 24mm lens and open design
  • Up to 50,000 hours battery life
  • Solar Failsafe battery backup
  • Auto brightness adjustment
  • 12 manual settings (10 daylight, 2 NV)
  • Shake Awake motion activation
  • Multi-Reticle System: 65 MOA Circle, 2 MOA Dot, or Circle Dot
  • Slide out side-mounted battery tray
  • Parallax-free with unlimited eye relief
  • User programmable sleep mode
  • Integrated QD Mount
  • Titanium protective hood

Holosun Technologies is committed to creating innovative optic, laser/IR technologies for a broad range of shooting, hunting, law enforcement, and military needs. Using quality manufacturing standards, they provide military grade optics without the military grade price.
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Battery TypeCR2032 3V Lithium Coin
Brightness9 Settings
Click Value1/2 MOA
FinishHardcoat Anodized
MaterialAluminum - 6061-T6
Night Vision CompatibleNight Vision Compatible
Reticle65 MOA Circle 2 MOA Dot
Reticle ColorRed
SizeFull Size
Warrantylimited lifetime
Weight4.9 Oz.

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

14 reviews

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The Sight Eotech Should Be


Purchased the 510c simply based off my prior experience with Holosun optics, my love for the Eotech reticle and Eotech open face style sight. The integrated QD mount is an added bonus, but the real key factors that make this sight great are the motion detected on feature, auto brightness (though tends to be on the dim side), which can be changed to manual brightness, battery life, 2 moa dot/60 moa circle/60 moa circle w 2 moa dot reticle choices and the titanium hood that goes over the optic itself to protect it from use. The auto on feature should have been integrated in eotechs years ago, and at $250, this is my fav cqb optic right now and will be going on many of my rifles going forward.

Great Optic

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Amazing optic. Way better than an EOTech in my opinion.
<br>I mounted on my Arsenal AK-47. Was easy to zero and held zero through first 100 rounds. Love the reticle option and light weight. Love the automatic mode.

Functions and looks good.

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Very nice fit and finish. Clear and bright. Fits rail perfectly. Easily adjustable. Nice packaging.

Best Buy!

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The 510C is IMO the best red dot optic on the market today! The increased field of view is awesome! The quality of Holosun is just icing on the cake!

Great sight for the money and you can't beat purchasing from PA!

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As always; I’m amazed on how fast PA delivers and how great their prices are. Very happy with all my transactions so far. Never had an issue and they send stuff in a matter of days (I’m located on the east coast). This Holosun sight is amazingly clear and unlike the Eotech it is sharp and crisp. Keep in mind that this sight is projecting the image which it's different than the holographic design on Eotechs but I think this is much better. Pretty sturdy and can take a hit. Don’t care for the auto-mode as it blinks when changing light settings but with the good old manual operation you cannot beat this puppy!

Great view for the older eyes

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I have purchased different red dot systems for several weapons, and I have found this particular model to be the easiest for me to see through. Yes, unfortunately I have an older set of eyes that require guidance, and the reticle that this unit provides places my focus on target through a co-witnessed sighting system. The only drawback to this current setup is that the ammo to truly enjoy it simply costs to much be able to truly sight it in. But I definitely believe that in these trying times it is really ballparking the shot right now.

Quality for a great price

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Great price, excellent service on a reliable product, using on a AKP, holds zero and very durable

Love this sight

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This is my second HS510C. I have had my other one for 1.5 years and love it! So far I have had great luck with Holosun, I have several other sights also and all are great.

Fav Optic

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The circle dot reticle is clear with minimal to zero blooming, great battery life, smaller foot print than an eotech, no noticed parallax, and this is my second one. I have eotech, aimpoint, and trijicon red dots the 510C is my favorite. 1 on my home defense and my SHTF.

Perfect Optic

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This is my second Holosun HS510C. It's impossible to give the optic less than 5 stars. It strikes the perfect balance with quality, features and price. My favorite feature is the shake to wake technology that automatically turns your dot on at the slightest movement so you're never caught unprepared. The huge sight picture with 3 different dot options makes this a joy to go target shooting with. As always, Primary Arms is my go to for anything firearms related.
<br>I really wanted an Eotech because of the name and reputation, but after using my first Holosun 510, and reading reviews of how this is not only comprable but in some ways better, Holosun HS510C is the best option.