Sig Sauer ROMEO-RS PRO 1x31mm Circle Dot Reflex Sight, Black

Sig Sauer ROMEO-RS PRO 1x31mm Circle Dot Reflex Sight Features and Performance

The Sig Sauer ROMEO-RS PRO 1x31mm Circle Dot Reflex 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.

The circle dot reticle gives the shooter a fast and highly visible aiming solution. Matching listings commonly describe it as a 2 MOA red dot paired with a 32 MOA circle. That setup is useful for shooters who want a crisp center aiming point for more deliberate shots while still keeping a bold outer reference for rapid acquisition at close range. On an optics-ready pistol, that balance helps the sight feel both fast and controlled during defensive drills, routine carry practice, and general handgun use.

Matching sources 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 own product materials highlight MOTAC motion-activated illumination, a side-mounted CR1632 battery tray, and a reinforced steel chassis molded into a high-strength polymer housing. Together, those details support the ROMEO-RS PRO’s role as a practical pistol red dot built for frequent use rather than a stripped-down minimal optic.

SIG’s spec sheet also lists 8 individual brightness settings and a minimum continuous runtime of 20,000 hours at medium brightness in dot-only mode. Several matching retailer listings show an approximate overall length around 1.83 inches. Those details reinforce the optic’s role as a modern handgun sight that stays compact while still providing a larger, easier-to-track window than many smaller micro pistol dots.

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: SOR02000
• UPC: 798681703357
• Magnification: 1x
• Objective Lens Diameter: 31mm
• Reticle: 2 MOA Red Dot / 32 MOA Circle
• 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
• Approximate Length: 1.83 in.
• Configuration: Open reflex pistol sight