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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 6,232 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Mar 23
Order within 15 hours and 31 minutes
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Color: Black


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 Holosun 510C is a versatile and rugged open reflex optic designed for long gun applications. Ideal for carbines, PCCs, and shotguns, the HS510C features a durable aluminum housing with a titanium hood, providing exceptional shock resilience for demanding environments. Its QD (Quick Detach) absolute co- witness mount ensures quick and easy mounting, with a 1.41” dot height for precise alignment with iron sights. A lower 1/3 co-witness spacer (sold separately) raises the dot height to 1.63” for added flexibility in setup. Packed with innovative features, the 510C includes Solar Failsafe, Shake Awake technology, and the Multi-Reticle System (MRS), allowing users to select between a 2 MOA dot, 65 MOA circle, or a circle-dot combination. With Holosun’s Red SuPer LED, this sight offers up to 50,000 hours of battery life on a single CR2032 battery and includes 10 daylight and 2 NV compatible brightness settings for various lighting conditions. Whether you're a tactical professional, competitive shooter, or outdoor enthusiast, the Holosun 510C is a top choice for long gun optics, offering durability, reliability, and versatility for any situation.

Brand: HOLOSUN


Color: Black


Style: Multi-Reticle Red


Product Dimensions: 3.3"L x 1.8"W x 2.3"H


Sport: Hunting


Item Weight: 8.32 ounces


Material: Metal, Titanium


Magnification Maximum: 1 x


Objective Lens Diameter: 30 Millimeters


Magnification Minimum: 1 x


Magnification Maximum: 1 x


Objective Lens Diameter: 30 Millimeters


Magnification Minimum: 1 x


Compatible Devices: Firearms with 1913 Picatinny Rail


Mounting Type: Rail Mount


Night vision: No


Field Of View: 25


Reticle Type: 65 MOA circle with 2 MOA dot


Color: Black


Product Style: Multi-Reticle Red


Item Dimensions L x W x H: 3.3"L x 1.8"W x 2.3"H


Item Weight: 8.32 ounces


Brand Name: HOLOSUN


Sport Type: Hunting


Manufacturer: Holosun


UPC: 350102577789 605930624571


Global Trade Identification Number: 71


Item Type Name: Holosun Circle Dot Sight


Included Components: CR2032 Battery


Warranty Description: Limited Lifetime


Material Type: Metal, Titanium


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 23

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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Top Amazon Reviews

    • 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 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 Does not fit the Samsung S23 phone. Case is ro small.
    • 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
    • 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
    • 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 for my m4.
Color: FDE Style: Multi-Reticle: Red
This item was perfect. Just what I wanted. Makes my m4 complete. Easy to install, multi reticle, looks good.
Reviewed in the United States on February 27, 2026 by Kindle Customer Edgar Taylor
    • 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
    • Great red dot optic
Color: Black Style: Multi-Reticle: Red
Bought this sight in 2019 for $275. It is still working great. I have had some issues over the years with picking the optic up and it not being on. Im not sure if it was to do with the settings or what but I would think it was on auto off standby mode but I had to adjust it a few times before I could trust that it would just be on instead of being off because it was in one of the modes that the sight has that affects battery comsumption. So be aware of that if your using this for duty. It has clear glass and dot. It feels durable and has lasted well with being knocked around during normal use. Easy to install, just double check the mode settings before you set and forget. Love the look of it as not many other optics have this exact footprint. It has a look of its own like an eotech ... show more
Reviewed in the United States on April 23, 2025 by Jay Dee

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