The SIG Sauer ROMEO-X Pro Green Dot Sight is a premium open-reflex pistol optic on the DeltaPoint Pro footprint. This model pairs a crisp 3 MOA dot with a high-visibility green emitter — many shooters find green appears brighter and faster to pick up.
A distortion-free aspherical lens, MOTAC + MAGNETAC activation, 15 brightness settings (3 night-vision), a top-loading CR2032 tray and IPX8 sealing make it a serious-duty optic.
How It Compares
Prefer a circle-dot? See the 2/32 green, or red versions like the 3 MOA red. Curious about colour? Read green vs red dot sights. 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
- Crisp 3 MOA green dot — high visibility, versatile size
- 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 |
3 MOA dot (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 faster to acquire; 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.
