Holosun HE508T X2 green dot sight front three-quarter view showing the lens coating

Holosun HE508T X2 Green Dot Sight Multi-Reticle System

£429.99
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Holosun HE508T X2 green dot sight front three-quarter view showing the lens coating

Holosun HE508T X2 Green Dot Sight Multi-Reticle System

£429.99

At a glance

Sight type
Open reflex
Reticle
Multi-reticle
Footprint
RMR
Fits
Pistol
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Details

Description

Holosun HE508T-X2 Green Dot Sight is the titanium open reflex with a green emitter — open being the key word, since the enclosed member of the T-series is the 509T. The Grade 5 titanium housing keeps it tough at low weight, adjustment runs 1 MOA per click over ±50 MOA of travel, and the Multi-Reticle System covers a 2 MOA green dot, a 32 MOA circle and a circle-dot.

How It Compares

In red, the HE508T-X2 Red. Want the emitter sealed in titanium instead? The HE509T-X2 Green. There are more green optics and pistol dot sights to compare.

Ideal For

  • Duty and defensive pistols on RMR-cut slides
  • Shooters whose eyes favour green over red
  • Hard-use builds that stay light
  • Anyone who wants three reticles from one optic

Key Features

  • Open emitter — the enclosed sibling is the 509T
  • Grade 5 titanium housing
  • Multi-Reticle System: 2 MOA green dot / 32 MOA circle / circle-dot
  • 1 MOA clicks, ±50 MOA windage and elevation travel
  • Solar Failsafe and Shake Awake; side-loading CR1632; up to 50,000 hours
  • RMR footprint; X2 glass

Technical Specifications

  • SKU / MPN / UPC: SKU HE508T-GR-X2 / MPN HE508T-GR-X2 / UPC 810047071273
  • Reticle: Multi-Reticle System — 2 MOA green dot / 32 MOA circle / circle-dot
  • Magnification: 1x, parallax-free, unlimited eye relief
  • Windage / elevation per click: 1 MOA
  • Total adjustment travel: ±50 MOA (windage & elevation)
  • Power: Solar Failsafe + side-loading CR1632, Shake Awake, up to 50,000 hours
  • Housing: Grade 5 titanium
  • Footprint: Trijicon RMR

What's Included

  • Holosun HE508T-X2 green dot sight
  • Mounting hardware and fitting tool
  • CR1632 battery

Why buy from Red Dot Sight UK

A UK specialist in red dot sights, holographic sights and magnifiers from Trijicon, EOTech, Holosun and SIG Sauer — genuine optics, secure checkout and UK-based support.

The detail

Technical Specifications

Sight typeOpen reflex
Dot colourGreen
ReticleMulti-reticle
FootprintRMR
FitsPistol
FinishTitanium
BrandHolosun
TypeGreen Dot Sight
SKUHE508T-GR-X2
Fitment

Compatibility

Mounting Footprint

Confirm the optic's footprint matches your firearm's cut or plate.

Rail Compatibility

Pair with a matching Picatinny mount for rifle and carbine platforms.

Always confirm your firearm's optic cut or rail matches the footprint before purchase. Our guide to red dot sight footprints explains how to match an optic to your firearm. If unsure, contact our team for fitment advice.

Help & guidance

Product FAQs

Is the HE508T-X2 emitter open or enclosed?

It is open. The 508T is an open reflex sight, and the fully enclosed titanium option is the 509T.

Why is the HE508T-X2 made from titanium rather than aluminium?

Titanium is tougher than aluminium for the same weight, which is the reason the T-series exists. The HE508T-X2 uses a Grade 5 titanium housing.

Should I pick the green or red HE508T-X2?

Green can be easier to see in daylight, and the sight is otherwise the same. The red version is the HE508T-X2 Red.

What are the adjustment increments on the HE508T-GR-X2?

Adjustment is 1 MOA per click with plus or minus 50 MOA of travel in windage and elevation. That applies to both axes.

What reticles does the Holosun HE508T-X2 offer?

The Multi-Reticle System covers a 2 MOA green dot, a 32 MOA circle and a circle-dot. That gives three reticles from one optic.

What battery does the HE508T-X2 take?

It takes a side-loading CR1632 battery rated for up to 50,000 hours. Solar Failsafe and Shake Awake are also built in.

Does the HE508T-X2 have solar backup and shake awake?

Yes, the HE508T-X2 has both Solar Failsafe and Shake Awake. They work with the side-loading CR1632 rated up to 50,000 hours.

What footprint does the HE508T-X2 use?

It uses the Trijicon RMR footprint. That suits duty and defensive pistols on RMR-cut slides.

What magnification is the HE508T-X2?

The HE508T-X2 is 1x, parallax-free with unlimited eye relief. It is an open reflex sight rather than a magnified optic.

What comes with the HE508T-X2?

The package includes the Holosun HE508T-X2 green dot sight, mounting hardware and fitting tool, and a CR1632 battery.

What is the difference between the HE508T-X2 and the HE509T-X2?

The HE508T-X2 has an open emitter while the HE509T-X2 seals the emitter in titanium as an enclosed sight. Both are available with a green emitter.

How long does the HE508T-X2 take to arrive?

Estimated UK delivery is 10 business days. It ships as genuine UK stock, so there are no import fees to pay on arrival. Checkout is secured by Shopify.

No questions match your search.

Further reading

Guides picked for this optic - the brand range, the format, and how to set it up.

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Shipping, Returns & Warranty

Orders are dispatched from the UK. Full details, options and timescales are on our shipping policy.

If something isn't right, our returns policy explains how to arrange a return or exchange.

Every order is covered by our 30-day returns policy and your statutory consumer rights. Some products are also supplied with a manufacturer warranty; that cover is provided by the manufacturer rather than by Red Dot Sight UK and varies by brand.