Sig Sauer ROMEO-RS PRO 1x31mm 3 MOA Green Dot Sight Features and Performance

The Sig Sauer ROMEO-RS PRO 1x31mm 3 MOA Green Dot Sight is built for shooters who want a durable pistol optic that emphasizes fast target acquisition, practical everyday usability, and a larger sight window than many compact carry dots. The ROMEO-RS PRO is positioned as an open reflex handgun optic for modern optics-ready pistols, making it a strong option for defensive use, duty-style setups, and general range work where a generous viewing window and a clean aiming point both matter.

This specific version is identified under part number SOR02080, and multiple matching listings tie that model directly to UPC 798681721504. Those same sources consistently describe it as the black ROMEO-RS PRO with a 1x31mm format and a 3 MOA green dot reticle. Keeping those details correct matters because the ROMEO-RS PRO family includes nearby red-dot, 6 MOA, and circle-dot variants, and this SKU is specifically the black 3 MOA green-dot model.

The 3 MOA green dot is a practical choice for handgun use because it offers a clean balance between fast pickup and useful precision. It is large enough to acquire quickly on presentation while still remaining controlled enough for more deliberate shots on target. The green emitter can also be appealing for shooters who prefer that color for visibility and contrast in a variety of lighting conditions.

Matching listings also identify this optic as using the DeltaPoint Pro footprint, which is an important fitment detail for buyers shopping for a direct-mount or adapter-ready pistol optic. Retailer specs commonly list 1 MOA windage and elevation adjustments, while SIG’s ROMEO-RS PRO materials highlight MOTAC motion-activated illumination, a side-mounted CR1632 battery tray, and a reinforced steel chassis molded into a high-strength polymer housing.

SIG and matching retailer pages also describe 8 brightness settings, a molded glass aspheric lens, and a minimum continuous runtime of 20,000 hours at medium setting in dot-only mode. Together, those details reinforce the ROMEO-RS PRO’s role as a practical pistol red dot built for frequent use rather than a stripped-down minimal optic.

If you are building out a complete handgun optics setup, you can browse more options in our
Optics & Optics Accessories
collection. You can also explore additional non-magnified sighting options in our
Red Dots & Non-Magnified Optics
category.

For manufacturer information and additional product details, visit
SIG SAUER.

Manufacturer: Sig Sauer
Model: ROMEO-RS PRO
MPN: SOR02080
UPC: 798681721504
Magnification: 1x
Objective Lens Diameter: 31mm
Reticle: 3 MOA Green Dot
Color: Black
Footprint: DeltaPoint Pro
Adjustment Click Value: 1 MOA
Battery: CR1632
Brightness Settings: 8
Technology: MOTAC motion-activated illumination
Runtime: 20,000 hours minimum
Configuration: Open reflex pistol sight