The SIG Sauer ROMEO-X Pro Green Dot Sight is a premium open-reflex pistol optic on the DeltaPoint Pro footprint. The green reticle is perceived as brighter by the human eye in many lighting conditions, making it pop fast against varied backgrounds.
This model runs a selectable 2 MOA dot / 32 MOA circle reticle, with MOTAC + MAGNETAC activation, 15 brightness settings (3 night-vision), a top-loading CR2032 tray and IPX8 sealing.
How It Compares
Prefer red? See the red ROMEO-X Pro. Curious about colour? Read green vs red dot sights. Carrying slim? The ROMEO-X Compact uses the RMSc footprint. Browse the SIG ROMEO range and all pistol dot sights.
Compatibility
DeltaPoint Pro (DPP) footprint — fits DPP-cut slides and optics-ready pistols with a DPP plate. Confirm your slide cut/plate before ordering.
Key Features
- Selectable 2 MOA dot / 32 MOA circle / circle-dot (green)
- High-visibility green reticle
- DeltaPoint Pro footprint; distortion-free aspherical lens
- MOTAC + MAGNETAC activation; 15 settings (3 NV)
- Top-loading CR2032 tray; 7075 aluminium, IPX8
Technical Specifications
| Magnification |
1x |
| Aperture |
24 mm |
| Reticle |
2 MOA dot / 32 MOA circle (green) |
| Brightness |
15 (12 day / 3 NV), MOTAC |
| Battery |
CR2032 (top-loading) |
| Footprint |
DeltaPoint Pro |
| Housing |
7075 aluminium, IPX8 |
| Finish |
Black |
What's Included
- SIG ROMEO-X Pro green dot sight
- CR2032 battery, mounting hardware, tools, 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 SIG's Infinite Guarantee.
Frequently Asked Questions
Green or red?
Many shooters find green appears brighter and easier to pick up; otherwise the optic is identical to the red version.
What footprint is it?
DeltaPoint Pro — fits DPP-cut slides and optics-ready pistols with a DPP plate.
Battery swaps?
Top-loading CR2032 — no need to remove the optic.
