Holosun HE510C Quick Detach Green Dot Sight w/ Picatinny Mount

SKU#HE510C-GR Holosun

Holosun HE510C Quick Detach Green Dot Sight w/ Picatinny Mount

Name: Holosun HE510C Quick Detach Green Dot Sight w/ Picatinny Mount
Brand: Holosun
Price: 329.99 GBP
Availability: OutOfStock

Available soon Notify me when back in stock

The Holosun HE510C is a rugged, no-nonsense green dot sight built for rifles and carbines that see real use. It’s got a big open window so you can track targets fast, and the bright 2 MOA green dot is super easy to pick up in pretty much any lighting. It comes with a quick-detach Picatinny mount, so you can pop it on or off without messing around. Add in solar backup, shake-awake tech, and a seriously durable build, and you’ve got a sight that’s ready for range days, training, or anything more serious without overthinking it.

-Nathan (Technical Advisor)

VIEW PRODUCT INFO / SPECS

Manufacturer Model: HE510C-GR 65 MOA Green Circle Dot

HE510C-GR 65 MOA Green Circle Dot

HE510C 65 MOA Red Circle Dot

Whilst we aim to dispatch in-stock items within 1 working day, please be aware that during busy periods dispatch of in-stock items may be delayed by up to 2 working days. Authorised UK Retailer

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OBSIDIAN REWARDS

Founded in Devon in 2007, Optics Warehouse has grown to become the UK’s largest specialist optics retailer, offering an unrivalled selection of rifle scopes, thermal imagers, night vision, binoculars, red dots, mounting systems and shooting accessories from the world’s leading brands, all backed by competitive pricing, expert advice and outstanding customer service.

Shaun Ellis, Managing Director Long range target shooting and deer stalking.

Product Information FIND OUT MORE

DESCRIPTION

The Holosun HE510C Quick Detach Green Dot Sight with Picatinny Mount is an advanced open reflex optic designed specifically for long gun applications. Its robust construction, featuring a durable aluminum housing with a titanium hood, makes it ideal for use on carbines, PCCs, and shotguns. This design ensures it can withstand rigorous conditions, providing reliability and durability for various shooting needs.

This optic includes a Quick Detach (QD) absolute co-witness mount, placing the dot at a height of 1.41 inches. For users who prefer a higher co-witness, an additional lower 1/3 co-witness spacer is available separately, raising the dot height to 1.63 inches. The HE510C-GR integrates several of Holosun’s signature technologies, such as Solar Failsafe, Shake Awake, and the Multi-Reticle System (MRS). Its Green Super LED offers a remarkable battery life of up to 50,000 hours, with 10 daylight settings and 2 settings compatible with night vision.

Solar Failsafe technology ensures a backup power source by utilizing natural or artificial light, automatically adjusting the reticle intensity based on the surrounding light conditions. Shake Awake technology conserves battery life by turning off the LED when the optic is not in use and instantly reactivates it with any motion, ensuring the sight is always ready.

The HE510C-GR offers flexible reticle options, including a 2 MOA dot, a 65 MOA circle, or a combination of both, catering to different shooting preferences. Its optical specifications include a parallax-free design and unlimited eye relief, ensuring quick target acquisition and accuracy. The sight’s compact dimensions, measuring 3.3 x 1.68 x 1.78 inches, and its lightweight design at 4.94 ounces, add minimal weight to the firearm.

Powered by a CR2032 battery housed in a convenient tray for easy replacement, the HE510C-GR is built to endure harsh environmental conditions, with an IP67 rating for water resistance and the capability to operate in temperatures from -30℃ to 60℃. It can also withstand vibrations up to 1000G, ensuring consistent performance under challenging conditions.

The package includes the HE510C-GR sight, an absolute co-witness QD mount, a T10 L key, a user manual, a CR2032 battery, and a lens cloth, providing all the essentials for immediate setup and maintenance.

SPECS

Optical Specs

Reticle: 2 MOA Dot & 65 MOA Circle
Light Wavelength: 540nm
Reticle Color: Green
Parallax Free: Yes
Unlimited Eye Relief: Yes
Magnification: 1x
Multi-Coatings: Yes

Electronic Specs

Power Source: Battery
Battery Type: CR2032
Battery Life (Hours): 50,000
Brightness Setting: 10 DL & 2 NV

Physical Specs

Window Size: 0.91 x 1.26 inches
Dimension (in): 3.3 x 1.68 x 1.78
Weight (oz): 4.94

Mechanical Specs

Housing Material: Aluminum & Titanium Hood
Surface Finish: MAO
Adjustment per Click: 0.5 MOA
W&E Travel Range: ±50 MOA

Environment Specs

Storage Temperature: -40℃ ~ 70℃
Working Temperature: -30℃ ~ 60℃
Submersion: IP67

FEATURES

Solar Failsafe™
Solar Failsafe Technology is one of many innovations featured on solar-equipped Holosun optics. With Solar Failsafe, if your battery fails you always have a backup power source when natural or artificial light is available. Solar Failsafe is activated while in Auto Mode where reticle intensity is automatically adjusted based on the amount of light the solar cell receives. In brighter conditions you have a brighter reticle and in lower-light conditions the reticle will step down in intensity to match any lighting conditions. On models equipped with a super capacitor, it is possible to run the optic, indefinitely, in daytime and night conditions, by maintaining a charge through the Solar Failsafe System all without a battery.

Shake Awake™
Shake Awake Technology is a standard feature on all current model Holosun optics and serves to extend battery life by deactivating the optic’s LED while not in use. A highly sensitive motion sensor works to detect motion keeping the LED powered on during use. This allows for duty or concealed carry with seamless operation throughout your day or shift. At the end of your day or shift when your firearm is stored, the motion sensor will detect a motionlessness state and after 10 minutes (default setting) Shake Awake Technology powers the LED off until motion is again detected. Shake Awake offers settings from 10 minutes to 12 hours depending on the model and can be deactivated altogether if preferred. The slightest touch of the optic instantly reactivates the LED so your Holosun optic is ready when needed.

Green MRS: Circle Dot; 2 MOA Dot; 65 MOA Circle
Up to 50,000 Hours Battery Life (Setting 6)
12 Brightness Setting: 10 DL & 2 NV Compatible
Convenient Tray Battery Compartment
Parallax-free & Unlimited Eye Relief

RETICLE

WHAT'S IN THE BOX

Holosun HE510C Quick Detach Green Dot Sight w/ Picatinny Mount
Absolute Cowitness QD mount
User manual
Lens cloth
T10 L key
CR2032 battery

FREQUENTLY ASKED QUESTION(S)

1. What is the 2 MOA green dot?
It’s a small aiming dot that balances precision and speed, with green being easier for many people to see in daylight.

2. Is this sight for rifles or pistols?
It’s designed for rifles, carbines, and shotguns with a Picatinny rail.

3. What does the quick-detach mount do?
It lets you remove or attach the optic quickly without needing tools or losing zero easily.

4. Does it use solar power?
Yes, it has Solar Failsafe technology that can help extend battery life or act as backup power.

5. How durable is it?
Very durable—built from tough aluminum and designed to handle recoil, impact, and harsh environments.

6. Does it have shake-awake?
Yes, it automatically powers on when it senses movement and goes to sleep when idle.

7. How long does the battery last?
Up to around 50,000 hours depending on settings and use.

8. Is the window bigger than standard red dots?
Yes, it has a large viewing window for faster target acquisition and tracking.

9. Can it hold zero after removal with QD mount?
Yes, it’s designed to return to zero reliably when reattached if properly mounted.

10. Is green better than red for this model?
Many shooters prefer green for visibility in bright conditions, but it comes down to personal preference.

WARRANTY

Holosun 10 years / product lifetime warranty. Read more here

DELIVERY & RETURNS

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.

Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE

COURIERS

We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.

IN-STORE ITEMS

These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.

PRE-ORDER ITEMS

These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.

INTERNATIONAL DELIVERY & TAXES

In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.

NEED HELP?

If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk

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A NOTE ABOUT DPD SHIPMENTS:

Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
Please view the attached slides HERE for further information!

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