Holosun HS510C HUD Solar Powered Circle Dot Sight

Manufactured by Holosun
Manufactured by Holosun
5 Reviews

Out of Stock

NOTE: Limit 5 per household. Quantities exceeding 5 will not allow checkout.



The HS510C Open Reflex Circle Dot Sight has an open frame for a wide sight picture. Always on, it is powered by solar cell under normal usage, and a back-up battery to supplement power requirements in low light conditions. The reticle can be switched between a 65 MOA circle with 2 MOA dot, or a 2 MOA dot only at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary.

  • Parallax free optical design, with unlimited eye relief
  • Minimized obstruction of vision with push button controls and a streamlined housing design
  • Switchable circle/dot and red dot reticles
  • Always on unless manually turned off
  • Internal battery tray design
  • Large 32 mm x 24 mm lens
  • Solar cell and high capacity battery provide dual power supplies
  • Shock resistant titanium alloy protective hood
  • Quick release mount
  • Adaptable to Picatinny and Weaver rails
  • CNC machined 6061-T6 aluminum housing
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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

5 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!