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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

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jun 29
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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


Sport: Hunting


Item Weight: 8.32 ounces


Material: Aluminum, Titanium


Magnification Maximum: 1 x


Objective Lens Diameter: 30 Millimeters


Magnification Minimum: 1 x


Compatible Devices: Firearms with 1913 Picatinny Rail


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


Aiming Scope Sight Pin Size: 2 Mils


Hand Orientation: Ambidextrous


Reticle Type: 65 MOA circle with 2 MOA dot


Item Weight: 8.32 ounces


Item Display Weight: 0.5 Pounds


Item Display Dimensions: 8 x 2 inches


Color: Black


Product Style: Multi-Reticle Red


Lens Color: Red


Brand Name: HOLOSUN


Sport Type: Hunting


Model Name: HS510C


Manufacturer: Holosun


UPC: 350102577789 605930624571


Global Trade Identification Number: 71


Model Number: HSHS510C


Manufacturer Part Number: HSHS510C


Unit Count: 1.0 Count


Warranty Description: Limited Lifetime


Included Components: CR2032 Battery


Item Type Name: Holosun Circle Dot Sight


Material Type: Aluminum, Titanium


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 29

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

    • My go to Optical
Color: Black Style: Multi-Reticle: Green
Absolutely love this. It's my standard now for all my long guns. Very well made, durable, and the tech is awesome (auto sleep, solar failsafe, shake-awake). It just works without you having to think about it. Battery life is essentially a non-issue; I've had mine mounted and running for months without issue. The multi-reticle system works well, I run the circle-dot for fast target acquisition at close range and can switch to the 2 MOA dot when I need precision. Glass clarity and size is excellent, no distortion, and the 65 MOA circle is bright and crisp even in full sun. Mounting is solid, holds zero through hard use with no drift. ... show more
Reviewed in the United States on June 5, 2026 by JWP06
    • 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.
    • 👍🏽nice 👍🏽nice
Color: Black Style: Multi-Reticle: Green
Review Image by TommyLion5
I have been using EOtech and wanted to try an alternative. This holosun is a good product. I have it mounted to an arms and it performed well. Was able to Zero it quickly. I’m happy with the purchase and would buy again. When comparing it to my EOtech: * the sights are clearer * has a little more features, * it’s slightly smaller * looks not as heavy duty (but I’m not trying to drop or bang it around). ... show more
Reviewed in the United States on May 29, 2026 Reviewed in the United States on May 29, 2026 by TommyLion5
    • 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 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
    • holosun 510c
Color: Black Style: Multi-Reticle: Green
High quality, built tough, worth the money
Reviewed in the United States on May 6, 2026 by Jay Schroeder
    • Beats RMR and Vortex dots. Best value red dot out there. Beats RMR and Vortex dots. Best value red dot out there.
Color: Black Style: Multi-Reticle: Red
Review Image by Marco Chavanne
Review Image by Marco Chavanne
Review Image by Marco Chavanne
Review Image by Marco Chavanne
Review Image by Marco Chavanne
Review Image by Marco Chavanne
Review Image by Marco Chavanne
I've had an RMR and a few Vorted red dots. The RMR had the dimming issue I resolved with an antiflicker plate and I loved it. The Vortex dots aren't sexy but they just work. I could punch a penny at 25 yards with both. This new Holosun however beats them all. The features, construction, and options put it above the competition at almost half the price. Perfect cowitness with the BUIS that came with my B&T GHM9. Took a considerable amount of left to right adjustment, but the up down was dead on. The shake to wake feature gives it true "Go Gun" status. No fiddling with buttons to turn it on. In a bad situation you don't want to have to try to turn one on when you really need it. Pulling it out of your bag will bring it to life and you're ready to rock. Autodimming is also a great feature my RMR and Vortex dots didn't have. Once enabled you will see a noticeable and immediate difference going from dark/dim to brighter areas. Works excellent outside. The feature is disabled by holding the + button for 3 seconds. This would be ideal if you're in a shaded environment and your target is outside in a brightly illuminated area. In the higher brightness settings you can still see the reticle when you point it towards the sun. You won't lose your dot in bright areas. The reticle options are also very hand. 2moa dot will help you plink pretty far down range and the larger 65moa reticle will give you fast acquisition at closer range. They defiently both have their place. And neither the RMR or Vortex dots offered multiple options. The battery life is supposed to be incredible. I haven't had it long to know, but all testing has shown you'll have years between battery changes. Keep in mind it does come with a spare battery tray so you if your grip has storage you can keep the included torx tool and spare battery with you when it becomes an issue. The solar feature is reassuring. Worst case scenario youre in the field or fight and the battery dies. If you are outside in the sun, or have enough ambient light the dot will still work. If SHTF and batteries are no longer available, you'll still be able to use it. The value, man.. It is just a no brainer. Half the price of an MRO or RMR. More features. More rugged design. The Alamaba Arsenal torture test includes, pouring water on it, throwing it 20ft into the air and letting it hit the ground, freezing it in ice, beating on it, and SHOOTING it with a shotgun, and it still held zero. The quick release mount also saves you an extra $150 if you were running other dots and allows for a perfect BUIS cowitness. Mine fit a little loose when I first installed it. I used the included tool and tightened the mount one turn and it clamped down with the force of an Amazonians thighs during Snoo Snoo. Absolutely solid now and still easy to release with the convenient latch keeper. The picture is incredible. The thinner profile sides and large viewing window give a natural feel and you're not chasing the dot around. No toilet paper tube EFFECT or black glob in the corner like with the Vortex Sparc AR. With boys eyes open you hardly notice the frame. You just see everything as well as a dot in your FOV. I will probably buy another one for my next Scorpion build. Can't imagine anyone coming out with a better optic for the money. ... show more
Reviewed in the United States on March 23, 2019 Reviewed in the United States on March 23, 2019 by Marco Chavanne
    • 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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