The Holosun HE507COMP is built for one thing: winning races on the clock. This open-emitter green dot uses an oversized competition window that practically disappears in front of your eye, so your dot finds the target instead of you hunting for it through the glass. It is a favourite among UK practical-pistol and steel shooters — and it is in stock for fast UK dispatch.
The standout feature is Holosun's Competition Reticle System (CRS): dial in a precise 2 MOA dot for accuracy, or open up to 8, 20 or 32 MOA circles for maximum speed — switchable on the optic, no tools needed. The green LED holds up better than red against bright outdoor backgrounds, and Shake Awake plus Lock Mode keep it ready without draining the cell.
IDEAL FOR
- Competition and performance shooting
- Range and training applications
- Full-size handgun setups
- Shooters prioritising speed and a large sight picture
KEY FEATURES
- Competition Reticle System (2 MOA dot with 8, 20, and 32 MOA circle options)
- Oversized competition window for enhanced field of view
- Green reticle for improved visibility in bright environments
- Open emitter reflex design for lightweight slide-mounted performance
- Shake Awake with memory and Lock Mode
- Side-mounted CR1632 battery tray for easy replacement
- Durable 7075-T6 aluminium housing
- Optimised for high-speed shooting environments
TECHNICAL SPECIFICATIONS
| Reticle |
2 MOA Dot / 8 / 20 / 32 MOA Circle |
| Reticle Type |
Competition Reticle System (CRS) |
| Illumination |
LED (Green) |
| Brightness Settings |
10 Daylight / 2 Night Vision |
| Battery Type |
CR1632 |
| Battery Life |
Up to 50,000 Hours |
| Click Value |
1 MOA |
| Windage Adjustment Range |
±30 MOA |
| Elevation Adjustment Range |
±30 MOA |
| Parallax |
Parallax Free |
| Mount Type |
RMR footprint |
| Window Size |
Oversized competition window |
| Housing Material |
7075-T6 Aluminium |
| Finish |
Hard Anodised Black |
| Waterproof Rating |
IP67 |
| Vibration Rating |
5000G |
| Warranty |
Limited Lifetime Warranty |
| SKU / MPN |
HE507COMP-GR |
| UPC |
810047072911 |
WHAT'S INCLUDED
- Holosun HE507COMP Reflex Green Dot Sight
- CR1632 Battery
- Adjustment Tool
- Mounting Hardware
- User Manual
UK Delivery & Support
This Holosun HE507COMP 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 limited lifetime warranty.
Frequently Asked Questions
Green dot vs red dot — which should I choose?
Green is easier for most eyes to pick up in bright daylight and tends to appear crisper, which is why competition shooters favour it. The only trade-off is slightly higher battery draw — a non-issue here given the 50,000-hour rating.
What pistols does the HE507COMP fit?
It uses the RMR footprint, so it mounts directly to any slide cut or adapter plate machined for a Trijicon RMR — one of the most widely supported patterns available.
Is it open or enclosed?
Open-emitter, which keeps it lightweight and gives the widest possible sight window — ideal for competition use over duty or concealed carry.
How do I change the battery?
Via a side-loading CR1632 tray — you can swap the battery without removing the optic or re-zeroing.
What do the CRS reticle options do?
A 2 MOA dot for precision, or 8/20/32 MOA circle-dots for fast acquisition on larger or closer targets.