--- title: "Holosun Solar Circle Dot Reflex Sight QD Mount" description: "Open reflex sight with solar power, CR2032 backup, and a switchable 2 MOA dot or 65 MOA ring. Includes QD mount and parallax-free 1x viewing." canonical_url: "https://www.kygunco.com/product/holosun-hs510c-circle-dotsolar-panelqd-mount-reflex-sights" meta: author: KYGUNCO "og:description": "Open reflex sight with solar power, CR2032 backup, and a switchable 2 MOA dot or 65 MOA ring. Includes QD mount and parallax-free 1x viewing." "og:image": "https://cdn.kygunco.com/assets/products/142604/thumbnail.jpg?v=1780429253" "og:image:height": "500" "og:image:width": "500" "og:title": "Holosun Solar Circle Dot Reflex Sight QD Mount" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Optics](https://www.kygunco.com/category/optics) / [Red Dots](https://www.kygunco.com/category/optics/red-dots) / HLS-HS510C ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/142604/main.jpg?v=1780429253) For illustration purposes only, this image may not be an exact representation of the product. # HOLOSUN 510C Circle Dot/Solar Panel/QD Mount Red Dot Open reflex sight with a wide sight picture, parallax-free 1x viewing, and unlimited eye relief. The reticle can switch between a 65 MOA circle with 2 MOA dot, dot only, or ring only. Powered by solar and CR2032 battery backup, with a QD integrated mount, titanium-alloy hood, and up to 50,000 hours of battery life. 5.0 ** ** ** ** ** [1 review](#reviews) $309.99 ** 5 interest-free payments of **$62** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) Pay over time with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. ** Partner Fulfilled Item # 142604 Style HLS-HS510C UPC 605930624571 Condition New Manufacturer [Holosun](https://www.kygunco.com/brand/holosun) Weight 1 lb Minimum Magnification 1x ### Holosun Circle Dot/Solar Panel/QD Mount Reflex Sights The HS510C Open Reflex Circle Dot Sight has an open frame for a wide sight picture. 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, a 2 MOA dot only, or a 65 MOA ring only at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary. **SPECIFICATIONS** - Parallax free with unlimited eye relief. - New advanced technology LED allows up to 50,000 hours of operation on one CR2032 battery - 2 MOA dot and a 65 MOA ring - Dot only, Ring only, or Dot and Ring reticle combinations - Unlimited field of view - Titanium-alloyed, shock resistant hood - Powered by both battery and solar - QD integrated **OPTICAL DATA** - Light Source: LED - Reticle: 2MOA Dot & 65MOA Ring - Parallax Free: Yes - Unlimited Eye Relief : Yes - Magnification: 1x - Multi-Coatings : Yes - Integrated Laser : No **ELECTRONIC DATA** - Battery Type: CR2032 - Battery Life: Up to 50,000 Hours - Brightness Setting: 10 Daylight & 2 NV Compatible **MECHANICAL DATA** - Housing Material: 6061 Aluminum with Titanium Hood - Surface Finish: MAO - Housing Color: Black - Adjustment per Click: 0.5 MOA - W&E Travel Range: ±50 MOA - Storage Temperature: -40F - 158F - Working Temperature: -22F - 140F - Submersion: IP67 - Vibration: Up to 1000G **PHYSICAL DATA** - Window Size: 0.91in x 1.2in - Dimension (in): 3.3 x 1.6 x 1.8 - Weight (oz): 8.3 - Central Height (in): 1.41 ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 5.0 ** ** ** ** ** 1 review ** ** ** ** ** 1 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** KyGunCo Verified Customer Ottawa, KS This is a solid option especially for the price point. 1/12/2021 ** ** ** ** ** ## More from Holosun ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/holosun-hs510c-circle-dotsolar-panelqd-mount-reflex-sights#webpage","@type":"WebPage","description":"Open reflex sight with solar power, CR2032 backup, and a switchable 2 MOA dot or 65 MOA ring. 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