Sig Sauer ROMEO5 GEN II 1x20mm Green Dot Sight, Black

Sig Sauer ROMEO5 GEN II 1x20mm Green Dot Sight Features and Performance

The Sig Sauer ROMEO5 GEN II 1x20mm Green Dot Sight is built for shooters who want a compact optic that emphasizes speed, simplicity, and dependable rifle-ready performance. The ROMEO5 line has long been one of SIG SAUER’s most recognizable red dot families, and the GEN II version continues that role with an updated design intended for practical use on modern sporting rifles and defensive carbines. This particular variant uses a green dot emitter, which many shooters prefer for its crisp appearance and strong visibility in a variety of lighting conditions.

This version is identified under part number SOR5102, and SIG SAUER’s 2024 instructor price list directly ties that model to UPC 798681694617. SIG describes it as the black ROMEO5 GEN II compact green dot sight with 0.5 MOA adjustments and a 1.41-inch M1913 I-Beam mount. Matching retailer listings also confirm the 1x20mm format, black finish, CR2032 battery, and MOTAC motion-activated illumination, which helps keep this SKU clearly separated from the nearby red dot and alternate ROMEO models in the same family.

The compact 1x20mm format keeps the rifle light and easy to handle, which is one of the main reasons optics in this class remain popular on AR-pattern rifles and other practical carbines. A true 1x optic supports both-eyes-open shooting and fast target transitions, while the compact housing avoids adding unnecessary bulk to the gun. For shooters building a general-purpose rifle or a straightforward range setup, the ROMEO5 GEN II gives a practical balance of performance, size, and ease of use.

Matching product listings commonly describe this model with 12 individual brightness settings, including dedicated night vision settings, along with an analog rotary illumination dial. Listings also reference SIG SAUER’s MOTAC technology and battery life around 40,000 hours under standard use. Those details reinforce the optic’s role as a simple and durable sight built for frequent use rather than a feature-heavy specialty optic. The included 1.41-inch M1913 I-Beam mount also makes it easy to integrate into common rail-equipped rifle setups.

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

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

• Manufacturer: Sig Sauer
• Model: ROMEO5 GEN II
• MPN: SOR5102
• UPC: 798681694617
• Magnification: 1x
• Objective Lens Diameter: 20mm
• Reticle: Green Dot
• Color: Black
• Adjustment Click Value: 0.5 MOA
• Battery: CR2032
• Brightness Settings: 12
• Mount Type: 1.41 in. M1913 I-Beam mount
• Technology: MOTAC motion-activated illumination