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HOLOSUN

HOLOSUN HS510C-FDE-R Red Multi Reticle, Open Reflex Sight, Solar, Shake Awake

  • Based on 161 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: 12 left in stock
Fulfilled by Gritr
Arrives Wednesday, Dec 24
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Features

  • Multiple Reticle System featuring 3 reticles
  • Parallax-free & Unlimited Eye Relief
  • Minimized obstruction of vision with push button controls and a streamlined housing design
  • Motion Sensor with Shake Awake or can stay on until manually turned off
  • Solar cell and high capacity battery provide dual power supplies

Description

The HS510C Open Reflex Sight with Circle/Dot Red Reticles has an open frame for a wide sight picture. It is powered by a CR2032 batter with Holosun's innovative Solar Failsafe back up. Equipped with Multi-reticle system, the red 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.

Brand: HOLOSUN


Color: Red


Style: Tactical


Sport: Archery


Item Weight: 4.94 Ounces


Material: Polycarbonate


Magnification Maximum: 1 x


Magnification Minimum: 1 x


Compatible Devices: Firearm


Mounting Type: Picatinny Mount


Brand: ‎HOLOSUN


Color: ‎Red


Style: ‎Tactical


Sport: ‎Archery


Item Weight: ‎4.94 Ounces


Material: ‎Polycarbonate


Magnification Maximum: ‎1 x


Magnification Minimum: ‎1 x


Compatible Devices: ‎Firearm


Mounting Type: ‎Picatinny Mount


Night vision: ‎No


Model Name: ‎Holosun HS510CFDE Fde Housing, Red Multi-Reticle, 6061 Aluminum, Open, Solar, Shake Awake, Rifle


Manufacturer: ‎Holosun


Reticle Type: ‎2 MOA dot with 65 MOA circle


UPC: ‎605930624991


Global Trade Identification Number: ‎91


Item Package Dimensions L x W x H: ‎4.69 x 3.66 x 3.03 inches


Package Weight: ‎0.39 Kilograms


Item Dimensions LxWxH: ‎3.3 x 1.8 x 1.8 inches


Brand Name: ‎HOLOSUN


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Part Number: ‎HS510CFDE


Included Components: ‎Holosun HS510CFDE Fde Housing, Red Multi-Reticle


Date First Available: January 1, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great optic
I’ve been using the HOLOSUN HS510C-FDE-R Red Multi Reticle for several weeks now, and it has exceeded all expectations. Right out of the box, the build quality is impressive—rugged, well-machined, and the FDE finish looks fantastic on my rifle. Multi-Reticle System: The ability to switch between a 2 MOA dot, 65 MOA circle, or both is incredibly useful. It gives me flexibility for both close-quarters and precision shooting. Solar + Battery Power: The solar failsafe is a brilliant feature. Quick Detach Mount: The QD mount is solid and makes it easy to move between platforms without losing zero. Wide Field of View: The glass is crystal clear, and the sight picture is wide and unobstructed. Target acquisition is fast and intuitive. This optic is perfect for anyone looking for high performance without the premium price tag of other brands. It’s held zero through hundreds of rounds and rough handling. I’d absolutely buy it again. ... show more
Reviewed in the United States on November 7, 2025 by Mike
    • Great Red Dot
HOLOSUN makes great optics. For me this is a much better option than other higher priced red dots. Holds zero and has clear glass.
Reviewed in the United States on December 6, 2025 by Richard J.
    • QUALITY!!!
Works great! Great product, Does the same thing as my EEO TEC FOR HALF THE PRICE.
Reviewed in the United States on September 25, 2025 by John
    • Best red for AR rifle on the market
Best red on the market. Shake awake is great stays on target. Once it’s sited in it stays there. The only rife red dot I buy. Clear glass nice dot.
Reviewed in the United States on April 18, 2025 by William c ward
    • Great red dot sight
I had been recommended to purchase this product by a friend who was using one. Once I received the product, I opened it. The box it comes in is very sturdy and Holosun provides all the necessary tools to do adjustments. It was easy to mount on my picatinny rail and I was off to the range to zero it in. It is fairly easy to zero in to if you follow the instructions. I had good groupings at 10 and 15 yds which is what I was going for. If you are looking for a good sight, I think you would be happy with this one. Thumbs up. ... show more
Reviewed in the United States on September 28, 2023 by dh135
    • Pristine
Great optic for the price, obvi I wanted the EO tech, but after buying a 556 Daniel D, I need to save a bit more! This optic is great, 3 reticle modes, shake awake, solar cell, and the color is great. Feels quality, and will be buying the magnifier soon.
Reviewed in the United States on September 23, 2024 by Kris Fettig
    • My Go-To Sight!
Fantastic sight! I’ve got a few of these now on several weapons.
Reviewed in the United States on July 1, 2025 by Brandon Parsons
    • Worth it
Easy to install and looks great on my M81 build!
Reviewed in the United States on March 7, 2025 by CMorgan

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