HolosunRifle Dot Sight
Holosun HE510C-GR Green Dot Sight HM3X 3x Magnifier Combo
- Reticle
- Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable
- Brightness
- 10 daylight and 2 night vision settings, manual and automatic
- Window
- 0.91 x 1.26 in.
- Mount
- Quick detach Picatinny, 1.41 in. optic height for absolute co-witness
Currently out of stock
Tracked delivery, estimated 7–10 working days
Want to know when it's back? Email us and we'll let you know
Multi-buy savings
Mix any optics and lights — applied automatically
- 5%2 items
- 10%3 items
- 15%4 or more
Applied automatically at checkout — no code needed. Accessories such as tailcaps, switches and mounts aren't included.
Complete your setup
- Shipped from the UK with tracked delivery
- 30-day returns on unused items
- Warranty support — contact us first
Delivery
Every order is shipped from the UK with tracked delivery. Estimated delivery time is 7–10 working days, and you will receive tracking details by email as soon as your order is on its way.
Returns
Unused items in their original packaging can be returned within 30 days. Email info@opticstrader.co.uk first and we will confirm the return details.
Warranty
Every product is new and boxed. If anything goes wrong, contact us first and we'll help with a manufacturer warranty claim where one applies.
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
- Reticle: Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable
- Brightness: 10 daylight and 2 night vision settings, manual and automatic
- Window: 0.91 x 1.26 in.
- Mount: Quick detach Picatinny, 1.41 in. optic height for absolute co-witness
- Battery: CR2032 side-loading tray, up to 50,000 hours
- Housing: Aluminium with titanium protective hood, IP67, 5000G rated
- Weight: 4.94 oz (sight)
- Dimensions: 3.3 x 1.68 x 1.78 in. (sight)
| Type | Rifle Dot Sight |
| Sight | Holosun HE510C-GR open reflex sight |
| Reticle | Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable |
| Dot Colour | 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 | Aluminium 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.
Which reticle does the Holosun HE510C-GR have?
Multi-Reticle System: 2 MOA dot and 65 MOA circle, selectable.
Is the Holosun HE510C-GR reticle illuminated?
10 daylight and 2 night vision settings, manual and automatic.
What does the Holosun HE510C-GR mount to?
Quick detach Picatinny, 1.41 in. optic height for absolute co-witness.
What battery does the Holosun HE510C-GR take?
CR2032 side-loading tray, up to 50,000 hours.
Is this a genuine Holosun product?
Yes — factory-new and genuine. The part number is HE510C-GR+M3X and the barcode is 810047073536.
Every order is shipped from the UK with tracked delivery, with an estimated delivery time of 7–10 working days. Unused items in their original packaging can be returned within 30 days for a full refund.