HolosunRed Dot Sight
Holosun HE509T X2 Red Dot Sight Multi-Reticle System
- Housing
- Grade 5 titanium, fully enclosed and nitrogen-purged
- Reticle
- red Multi-Reticle System — selectable 2 MOA dot, 32 MOA circle,...
- Footprint
- 509T footprint, with an RMR-to-509T adapter plate included
- Illumination
- 12 brightness settings — 10 daylight and 2 night-vision compatible
In stock — 7–10 business day delivery
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.
- 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 HE509T X2 Red Dot Sight (HE509T-RD-X2) is a 1x fully enclosed pistol red dot sight in a nitrogen-purged Grade 5 titanium housing on the 509T footprint, with the Multi-Reticle System — a 2 MOA red dot, a 32 MOA circle, or both together as a circle-dot. An RMR-to-509T adapter plate is included.
This is about as tough as a mini reflex sight gets. The emitter is sealed inside the housing and the interior is nitrogen-purged, so rain, mud and dust never reach the LED and the glass does not fog from the inside. Grade 5 titanium takes the impact loads. Solar Failsafe supplements the CR1632, Shake Awake sleeps the reticle when the pistol is still, and Lock Mode stops the settings being changed by accident, for up to 50,000 hours of runtime.
How it compares
The same optic is available in HE509T X2 green and HE509T X2 gold. For an open-emitter titanium optic on the RMR footprint, see the HE508T X2 red dot sight; for an open-emitter aluminium one, the HS507C X2 red dot sight. Browse every enclosed red dot sight we stock.
Ideal for
- Section 1 long-barrelled pistols and revolvers held on a UK firearm certificate
- All-weather outdoor use, where a sealed emitter keeps the dot clear
- Practical shotgun and pistol-calibre carbine builds using a 509T Picatinny mount
- Airsoft GBB pistol builds that take a beating on wet sites
Key features
- Housing: Grade 5 titanium, fully enclosed and nitrogen-purged
- Reticle: red Multi-Reticle System — selectable 2 MOA dot, 32 MOA circle, or circle-dot
- Footprint: 509T footprint, with an RMR-to-509T adapter plate included
- Illumination: 12 brightness settings — 10 daylight and 2 night-vision compatible
- Electronics: Solar Failsafe supplemental power, Shake Awake and Lock Mode
- Battery: CR1632, up to 50,000 hours of runtime
- Magnification: 1x, parallax-free
| Optic Type | Enclosed pistol red dot sight, 1x (non-magnified) |
| Reticle | Multi-Reticle System — 2 MOA dot / 32 MOA circle / circle-dot |
| Reticle Colour | Red |
| Footprint | 509T footprint (RMR-to-509T adapter plate included) |
| Illumination | 12 brightness settings — 10 daylight / 2 night-vision compatible |
| Battery | CR1632, up to 50,000 hours |
| Power | Battery with Solar Failsafe supplemental power |
| Power Management | Shake Awake motion activation; Lock Mode |
| Housing | Grade 5 titanium |
| Sealing | Nitrogen-purged, fully enclosed emitter |
| MPN | HE509T-RD-X2 |
What footprint does the Holosun HE509T X2 use?
The Holosun HE509T X2 Red Dot Sight uses the 509T footprint, which is its own pattern rather than RMR or RMSc. An RMR-to-509T adapter plate is included in the box, so it can also be fitted to RMR-cut slides and RMR-pattern mounts.
Will the Holosun HE509T X2 fit an RMR-cut slide?
Yes, using the RMR-to-509T adapter plate supplied with the optic. Without that plate the Holosun HE509T X2 mounts only to the native 509T pattern.
Is the Holosun HE509T X2 fully sealed?
Yes. The Holosun HE509T X2 has a fully enclosed emitter in a nitrogen-purged Grade 5 titanium housing, so rain, mud and dust cannot reach the LED and the glass will not fog internally.
What reticle options does the Holosun HE509T X2 have?
It uses the Multi-Reticle System, which switches between a 2 MOA red dot on its own, a 32 MOA circle on its own, and both together as a circle-dot.
What battery does the Holosun HE509T X2 use?
The Holosun HE509T X2 runs on a CR1632 cell. With Solar Failsafe supplementing it from ambient light and Shake Awake sleeping the reticle when idle, Holosun rates the runtime at up to 50,000 hours.
How is the HE509T X2 different from the HE508T X2?
Both use Grade 5 titanium housings, but the Holosun HE509T X2 has a fully enclosed, nitrogen-purged emitter on the 509T footprint, while the HE508T X2 is an open-reflex optic on the Trijicon RMR footprint.
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.