The Holosun HE510C-GR & HM3X Green Dot Sight and Magnifier Combo is a Holosun rifle dot sight with Multi-Reticle System: 2 MOA dot and 65 MOA reticle and 0.91 x 1.26 in window.
How It Compares
Browse all rifle dot sights or the full Holosun range.
Ideal For
- Fast target acquisition with the Multi-Reticle System: 2 MOA dot and 65 MOA circle reticle
- Builds already cut for the Quick detach Picatinny pattern
- Both-eyes-open shooting, where irons slow you down
- Running on a CR2032 side-loading tray cell
Key Features
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Reticle: Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable
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Brightness: 10 daylight and 2 night vision settings, manual and automatic
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Window: 0.91 x 1.26 in.
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Mount: Quick detach Picatinny, 1.41 in. optic height for absolute co-witness
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Battery: CR2032 side-loading tray, up to 50,000 hours
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Housing: Aluminum with titanium protective hood, IP67, 5000G rated
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Weight: 4.94 oz (sight)
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Dimensions: 3.3 x 1.68 x 1.78 in. (sight)
Technical Specifications
Type |
Rifle Dot Sight |
Sight |
Holosun HE510C-GR open reflex sight |
Reticle |
Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable |
Dot Color |
Green, 540 nm |
Window |
0.91 x 1.26 in. |
Mount |
Quick detach Picatinny, 1.41 in. optic height for absolute co-witness |
Magnifier |
Holosun HM3X 3x magnifier on a flip-to-side mount |
Battery |
CR2032 side-loading tray, up to 50,000 hours |
Power Backup |
Solar Failsafe |
Brightness |
10 daylight and 2 night vision settings, manual and automatic |
Weight |
4.94 oz (sight) |
Dimensions |
3.3 x 1.68 x 1.78 in. (sight) |
Housing |
Aluminum with titanium protective hood, IP67, 5000G rated |
SKU / MPN / UPC |
HE510C-GR+M3X / HE510C-GR+M3X / 810047073536 |
Please Note
Holosun names this set the HE510C-GR & HM3X Green Dot Combo and some distributors write the part number as HE510C-GR/HM3X. The magnifier supplied is the HM3X.
UK Delivery & Support
Imported from the USA, duty paid by us, and dispatched tracked from the UK — nothing to pay on delivery. Backed by UK-based aftersales support.
Frequently Asked Questions
Which reticle does it have?
Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable.
Is the reticle illuminated?
10 daylight and 2 night vision settings, manual and automatic.
What does it mount to?
Quick detach Picatinny, 1.41 in. optic height for absolute co-witness.
What battery does it take?
CR2032 side-loading tray, up to 50,000 hours.
Is this a genuine Holosun product?
Yes — factory-new Holosun stock. The part number is HE510C-GR+M3X and the barcode is 810047073536.
