HolosunGreen Dot Sight
Holosun HE512T Green Dot Sight Multi-Reticle System Titanium
- Housing
- Grade 5 titanium with a fully enclosed emitter, IPX8 rated
- Reticle
- green Multi-Reticle System — selectable 2 MOA dot, 65 MOA circle,...
- Emitter
- 530 nm green LED
- Window
- 0.91 × 1.26 in (23 × 32 mm)
In stock — 7–10 business day delivery
Tracked delivery, estimated 7–10 working days
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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 HE512T Green Dot Sight (HE512T-GR) is a 1x fully enclosed rifle green dot sight in a Grade 5 titanium housing, with a 530 nm green Multi-Reticle System — a 2 MOA dot, a 65 MOA circle, or both together as a circle-dot — behind a 0.91 × 1.26 in (23 × 32 mm) window, on an integrated Picatinny mount at 1.41 in (35.8 mm) absolute co-witness. UPC 605930624885.
Green sits nearer the eye's peak sensitivity than red, so it looks brighter in daylight and is often crisper for shooters with astigmatism, who can see a red dot as a smear. Around that sits the same sealed titanium construction as the red version: the emitter is enclosed, so rain and mud never reach it. Solar Failsafe backs up the side-tray CR2032 for up to 50,000 hours, adjustment is 0.5 MOA per click with ±50 MOA of travel, and the unit is rated IPX8 at 9.17 oz (260 g).
How it compares
The red version is the HE512T red dot sight. For an open-emitter green sight with the same reticle set, the HE510C green dot sight is the classic choice. For a smaller enclosed rifle optic in green, the AEMS Macro green dot sight is lighter. To add magnification behind it, fit the HM3X 3x flip-to-side magnifier or the HM3XT titanium 3x magnifier. Browse all Holosun rifle red dot sights and our shotgun red dot sights.
Ideal for
- Bright-daylight shooting, where a green reticle holds up better than red
- Shooters with astigmatism, who often see a red dot as a smear
- Practical shotgun and 3-Gun, where the 65 MOA circle drives fast close hits
- Wet, muddy British field and range conditions that defeat an open emitter
Key features
- Housing: Grade 5 titanium with a fully enclosed emitter, IPX8 rated
- Reticle: green Multi-Reticle System — selectable 2 MOA dot, 65 MOA circle, or circle-dot
- Emitter: 530 nm green LED
- Window: 0.91 × 1.26 in (23 × 32 mm)
- Mount: integrated Picatinny mount at 1.41 in (35.8 mm) absolute co-witness
- Electronics: Solar Failsafe supplemental power plus Shake Awake motion activation
- Battery: side-tray CR2032, up to 50,000 hours of runtime
- Adjustment: 0.5 MOA per click, ±50 MOA windage and elevation
| Optic Type | Enclosed rifle green dot sight, 1x (non-magnified) |
| Reticle | Multi-Reticle System — 2 MOA dot / 65 MOA circle / circle-dot |
| Reticle Colour | Green |
| Light Source | 530 nm green LED |
| Window Size | 0.91 × 1.26 in (23 × 32 mm) |
| Mount | Picatinny, 1.41 in (35.8 mm) absolute co-witness |
| Battery | CR2032 in a side tray, up to 50,000 hours |
| Power | Battery with Solar Failsafe supplemental power |
| Click Value | 0.5 MOA per click |
| Adjustment Range | ±50 MOA windage and elevation |
| Housing | Grade 5 titanium |
| Water Resistance | IPX8 |
| Dimensions | 3.35 × 1.63 × 1.7 in (85 × 41 × 43 mm) |
| Weight | 9.17 oz (260 g) |
| MPN / UPC | HE512T-GR / 605930624885 |
Why choose the green HE512T over the red one?
Green sits nearer the eye's peak sensitivity, so the reticle on the Holosun HE512T Green Dot Sight looks brighter in daylight and is often crisper for shooters with astigmatism. A red emitter typically gives slightly longer battery life for the same setting.
Does the Holosun HE512T Green need a separate mount?
No. The Holosun HE512T Green mounts directly to a Picatinny rail on its integrated mount at 1.41 in (35.8 mm) absolute co-witness, so no additional riser is required on a standard flat-top receiver.
Why choose an enclosed emitter on a rifle?
The emitter on the Holosun HE512T Green is sealed inside the Grade 5 titanium housing, so rain, mud and dust cannot settle in front of the LED and smear the reticle as they can on an open reflex sight.
What reticle options does the Holosun HE512T Green have?
It uses the Multi-Reticle System, which switches between a 2 MOA green dot on its own, a 65 MOA circle on its own, and both together as a circle-dot.
Can I change the battery on the Holosun HE512T Green without losing zero?
Yes. The Holosun HE512T Green uses a side-loading CR2032 tray, so the cell can be replaced with the optic still mounted and zeroed.
Is the Holosun HE512T Green waterproof?
Yes. The Holosun HE512T Green is rated IPX8 in a Grade 5 titanium housing, so immersion in water is within its rating.
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.