The Holosun AEMS PRO X2 is an enclosed, full-size rifle red dot sight with a big rectangular window for a fast, heads-up sight picture. The PRO X2 optical system cuts parallax by up to 50% over the original AEMS for tighter accuracy.
It runs the Multi-Reticle System (2 MOA dot / 65 MOA circle / circle-dot), Solar Failsafe, Shake Awake and a forward-facing light sensor for smarter auto-brightness — and ships with a lower-1/3 co-witness mount and ARD.
How It Compares
Want the simpler core version? See the AEMS CORE X2. Browse more Holosun rifle red dots, all enclosed red dot sights, and build via AR-15 optics. New to optic types? Read best AR-15 optics.
Ideal For
- AR-15s and carbines
- Tactical and duty use
- All-weather and dynamic-light environments
Key Features
- Enclosed emitter — sealed against debris and weather
- Multi-Reticle System (2 MOA / 65 MOA / circle-dot)
- Reduced-parallax PRO optical system
- Solar Failsafe + Shake Awake; forward light sensor
- Lower-1/3 co-witness mount + ARD included
- 7075-T6 aluminium, IP67
Technical Specifications
| Reticle |
MRS — 2 MOA dot / 65 MOA circle (red) |
| Window Size |
1.1 × 0.87 in |
| Power |
CR2032 + Solar Failsafe (up to 50,000 h) |
| Brightness |
12 (10 day / 2 NV) |
| Click Value |
0.5 MOA |
| Mount |
Lower-1/3 co-witness |
| Housing |
7075-T6 aluminium, IP67 |
| Eye Relief |
Unlimited |
What's Included
- Holosun AEMS PRO X2 red dot
- Lower-1/3 co-witness mount, ARD, clear lens insert
- Multi-tool, CR2032 battery, lens cloth, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Holosun's warranty.
Frequently Asked Questions
Is it enclosed?
Yes — the sealed emitter keeps the dot running through rain, dust and debris.
What's new on the PRO X2?
An upgraded optical system reduces parallax by up to 50% and a forward-facing sensor improves auto-brightness.
Does it co-witness on an AR-15?
Yes — it ships with a lower-1/3 co-witness mount.
