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HOLOSUN

HOLOSUN 510C Multi-Reticle 2 MOA Dot & 65 MOA Circle Open Reflex Sight - Solar FailSafe Shake-Awake, 12 Settings - Red/Green Reticle

  • Based on 161 reviews
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Availability: In Stock.
Fulfilled by EuroOptic (✅ Authorized Dealer ✅ Fastest Shipping)
Arrives Sunday, May 10
Order within 14 hours and 45 minutes
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Color: FDE


Style: Multi-Reticle: Red


Features

  • Multi-Reticle System (MRS): Choose between a 2 MOA dot, 65 MOA circle, or a circle-dot combination
  • Solar Failsafe: Continuous operation powered by solar energy when ambient light is available
  • Shake Awake Technology: Automatically activates the sight with motion, preserving battery life
  • Quick Detach (QD) Mount with 1.41 dot height for easy installation and co-witness alignment
  • Red Super LED: Provides up to 50,000 hours of battery life for reliable, long-lasting performance

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: FDE


Style: Multi-Reticle Red


Sport: Hunting


Item Weight: 4.94 Ounces


Material: Metal, Titanium


Magnification Maximum: 1 x


Magnification Minimum: 1 x


Compatible Devices: Firearm


Mounting Type: Picatinny Mount


Magnification Maximum: 1 x


Magnification Minimum: 1 x


Compatible Devices: Firearm


Mounting Type: Picatinny Mount


Night vision: No


Reticle Type: 2 MOA dot with 65 MOA circle


Item Weight: 4.94 Ounces


Color: FDE


Product Style: Multi-Reticle Red


Material Type: Metal, Titanium


Brand Name: HOLOSUN


Sport Type: Hunting


Model Name: HS510C


Manufacturer: Holosun


UPC: 605930624991


Global Trade Identification Number: 91


Model Number: HS510CFDE


Manufacturer Part Number: HS510CFDE


Warranty Description: Lifetime Manufacturer Defective Warranty


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


Item Type Name: Shooting sight


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 10

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Awesome dot with modern features.
Color: Black Style: Multi-Reticle: Green
Quality dot here. Smaller and much less expensive than similar dots in this category. AND it has shake awake. Installation is a breeze with the lever. All in all - this is an awesome dot sight and I would even venture to say I like it better than the EOTECH EXP - but what do I know; it’s personal preference. ... show more
Reviewed in the United States on April 5, 2026 by C.T.
    • Great green dot sight
Color: Black Style: Multi-Reticle: Green
Best green dot sight I own. Shake awake feature with auto on and off are the features I was looking for. I love the different reticle options and the green is highly visible. Holds zero incredibly well at 25 yds on my 9mm Pcc. Battery life is great with the solar fail safe just makes this an absolute must have for any firearm that allows for a picatinny mount. I would absolutely recommend this product. ... show more
Reviewed in the United States on February 7, 2026 by Xavier F. Chavez II
    • Great site
Color: Black Style: Multi-Reticle: Green
Wonderful, well built site. Solar back up power that works great. Easy to install and holds solid. Clear glass with easy to see reticle. Holds its zero well even after a lot of shooting.
Reviewed in the United States on January 11, 2026 by Scott
    • Great buy for the price point
Color: FDE Style: Multi-Reticle: Red
High quality and functional. No issues when in use. Long battery life, sweet shake awake feature and easy to use.
Reviewed in the United States on February 15, 2026 by mike crooks
    • Great optic
Color: FDE Style: Multi-Reticle: Red
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 sight fir a decent price.
Color: Black Style: Multi-Reticle: Green
As usual this Holosun sight is a great sight. The green reticle really stands out. I've got several of these sights with the red reticles and they're good and dependable sights. You can't go wrong with them.
Reviewed in the United States on March 5, 2026 by DBH
    • Longer battery life than competitors.
Color: Black Style: Multi-Reticle: Green
Holosun is great and costs less than some competitors. You can't go wrong with their extended battery life and solar power. I have this on a shotgun. I didn't even need to make any adjustments; it fired straight and true right out of the box. My last optic was a true holo-sight; and it required a lot of adjusting. I should have purchased a Holosun back then. ... show more
Reviewed in the United States on March 4, 2026 by Amazon Customer
    • Excellent
Color: Black Style: Multi-Reticle: Red
Holosun is a fantastic optic, Yes it is made in China and they are making a very durable and top of the line product. Excellent sight picture ,very clear and durable optic, I shoot a lot and I believe this is my eighth one I have purchased for the collection of rifles I have, I own EOTECH and many others, there is nothing more durable than EOTECH but this comes pretty close when you look at it has solar so you really never worry about it working, shake awake, fog and water proof, night vision capabilities, reliable to zero every time, don’t worry about the battery and don’t forget to buy a cheap cover to go with it, you really can’t go wrong with any of the Holosun line ... show more
Reviewed in the United States on November 22, 2025 by KET19

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