The Holosun HE507C X2 with the ACSS Vulcan reticle takes the world's most popular pistol optic platform and adds Primary Arms' acclaimed ACSS reticle — a 10 MOA chevron inside a large guidance circle that drives your eye straight back to the aiming point for fast, repeatable hits. This is the green-emitter version, which many shooters find crisper in bright daylight.
Built on the proven 507C X2 platform (RMR footprint) with a 7075-T6 aluminium housing, open-emitter design, Solar Failsafe, Shake Awake and a convenient side-loading battery tray.
How It Compares
Prefer a red emitter? See the HS507C X2 ACSS (red). Want Holosun's multi-reticle system instead of ACSS? See the HE507C X2 (MRS). It uses the RMR footprint — browse more in Holosun pistol red dots and green dot sights. New to the reticle? Read what is the ACSS reticle.
Ideal For
- Concealed carry and defensive pistols
- Duty and professional handgun setups
- Training and skill development
- Shooters wanting faster reticle reacquisition
Key Features
- ACSS Vulcan reticle for rapid target reacquisition
- Green reticle for enhanced visibility in bright light
- Open-emitter reflex design for lightweight performance
- Solar Failsafe with automatic brightness adjustment
- Shake Awake with last-setting recall
- Side-mounted CR1632 battery tray for easy changes
- Durable 7075-T6 aluminium housing, IP67 rated
Technical Specifications
| Reticle |
ACSS Vulcan (10 MOA chevron) |
| Illumination |
Green LED |
| Brightness Settings |
12 (10 daylight / 2 night-vision) |
| Click Value |
1 MOA |
| Windage / Elevation Range |
±50 MOA |
| Parallax |
Parallax-free |
| Mount / Footprint |
Holosun 507C (RMR) footprint |
| Window Size |
0.63 × 0.91 in |
| Battery |
CR1632 — up to 50,000 hours |
| Housing / Finish |
7075-T6 aluminium / hard-anodised black |
| Waterproof Rating |
IP67 |
| Weight |
1.5 oz |
| Warranty |
Limited Lifetime |
What's Included
- Holosun HE507C X2 Green Dot Sight
- CR1632 battery
- Adjustment tool
- Mounting hardware
- User manual
UK Delivery & Support
This Holosun HE507C X2 ACSS is UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based aftersales support and Holosun's warranty.
Frequently Asked Questions
What is the ACSS Vulcan reticle?
A 10 MOA chevron inside a large guidance circle. The circle leads your eye to the chevron tip for fast reacquisition up close, while the fine chevron tip aids precision at distance.
Will it fit my pistol?
It uses the RMR footprint — it fits RMR-cut slides and optics-ready pistols supplied with an RMR plate. Confirm your slide cut before ordering.
Green or red reticle?
Many shooters find the green emitter easier to pick up in bright daylight; a red version (HS507C X2 ACSS) is also available.
How is the battery changed?
Via the side-loading CR1632 tray — no need to remove the optic or re-zero.
