The Holosun ARO GD2 is a compact enclosed rifle gold dot sight with a 2 MOA dot in a sealed 22mm housing. The gold reticle adds contrast in bright daylight — sealed reliability at an accessible price.
Shake Awake motion activation gives instant-on readiness and up to 50,000 hours of runtime, and it ships with both a lower-1/3 co-witness mount and a low mount.
How It Compares
Prefer red or green? See the ARO RD2 or GR2. Want selectable reticles? The ARO MRS gold. Browse all enclosed red dot sights, build via AR-15 optics, and read best AR-15 optics.
Key Features
- Compact 22mm enclosed emitter; clean 2 MOA gold dot
- Shake Awake motion activation
- Lower-1/3 co-witness + low mount included
- Up to 50,000 hours; IP67
- Durable aluminium housing
Technical Specifications
| Reticle |
2 MOA dot (gold) |
| Objective |
22 mm (enclosed) |
| Brightness |
8 day / 2 NV |
| Click Value |
1 MOA |
| Battery |
CR2032 (up to 50,000 h) |
| Mount |
Lower-1/3 co-witness + low mount |
| Housing |
Aluminium, IP67 |
What's Included
- Holosun ARO GD2 gold dot
- Lower-1/3 mount + low mount, 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 — a sealed 22mm emitter for all-weather reliability.
Why gold?
Gold can offer better contrast in bright daylight; otherwise identical to the red/green ARO.
Does it co-witness?
Yes — it ships with a lower-1/3 co-witness mount and a low mount.
