Sig Sauer ROMEO4T | 1x20mm Ballistic Circle-Dot | SOR43031

The Sig Sauer ROMEO4T is a compact 1x20mm red dot sight designed for modern semi-automatic pistols, MSR platforms, and shotguns. It combines solar-assisted power with a CR2032 battery backup and MOTAC motion-activated illumination to extend runtime while retaining instant-on readiness. The chassis is machined from 7075 T‑6 aluminum and built to withstand rugged field conditions.

Product Specifications

• The magnification is 1x for true parallax-free aiming at close ranges.
• The objective clear aperture is 20 mm to balance sight picture and compact size.
• The reticle type is a Ballistic Circle-Dot, with numeric dot sizes reported inconsistently across sources (see notes).
• The adjustment increments are 0.5 MOA for fine zeroing.
• Windage and elevation adjustments provide 100 MOA of travel as specified in vendor attributes.
• Power is provided by solar assistance with CR2032 battery backup for extended runtime and redundancy.
• The listed battery life is 100,000 hours using combined solar and battery operation.
• The switch type is MOTAC (Motion Activated Illumination) to conserve power when idle.
• The main housing material is 7075 T-6 CNC Aluminum for strength and reduced weight.
• The finish is Black Anodized for corrosion resistance and low reflectivity.
• The weight is 7.60 oz to keep the optic compact and lightweight on modern platforms.
• The overall length is 3.37 inches for a low-profile footprint.
• The mount type is a 1/2" hex bolt system and the package includes a low-profile Torx mount and 1.41" riser/1/3 co-witness spacer per vendor attributes.
• The unit is described as Mil-Spec tested and submersible up to 20 meters for reliable operation in wet environments.
• UPC: 798681567881.

The ROMEO4T pairs practical on‑gun features with robust construction—solar/battery power, motion-activated illumination, and a compact 1x optical footprint make it suitable for range work and competition on pistols and MSR/shotgun platforms. Its lightweight 7075 aluminum housing and IP/Mil‑Spec level sealing are aimed at users who prioritize durable, low‑maintenance optics for regular use.

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