The SIG Sauer ROMEO4S Red Dot Sight is a compact, solar-assisted reflex optic engineered for MSR platforms, shotguns, and pistols equipped with Picatinny rails. Featuring multiple selectable reticle options including 2 MOA dot and ballistic circle-dot configurations, the ROMEO4S provides versatile aiming solutions for close-range engagements. An integrated solar backup panel augments the power system alongside a CR2032 battery for extended runtime, while MOTAC™ motion-activated illumination helps preserve battery life. Built with a rugged aircraft-grade aluminum housing and sealed construction, the ROMEO4S offers reliable field performance and quick target acquisition.
Key Attributes for the SIG Sauer ROMEO4S Red Dot Sight
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Brand: SIG Sauer
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Product Name: ROMEO4S Red Dot Sight
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Model: ROMEO4S / SOR43021 / SOR43022 (varies by reticle)
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Condition: New
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Product Type: Reflex Red Dot Sight
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Magnification: 1×
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Objective Lens Diameter: 20 mm
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Reticle Type: Selectable multiple reticles:
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2 MOA dot
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Ballistic circle-dot
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Dot with holds
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Circle-dot with holds
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Reticle Color: Red
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Brightness Settings: Daylight + Night-Vision compatible levels
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Power Source: (1) CR2032 lithium coin cell battery
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Battery Life: Up to ~100,000 hours with solar assist and MOTAC™
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Motion Activation: MOTAC™ (Motion Activated Illumination)
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Optical Design: Parallax-free with unlimited eye relief
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Housing Material: Aircraft-grade CNC aluminum
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Finish: Graphite / Black (varies by SKU)
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Mounting Interface: Quick-release Picatinny rail mount included
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Adjustment: Windage & elevation adjustable (½ MOA per click, approx.)
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Water Resistance: IPX-7 waterproof and fog-proof
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Weight: ~7.6 oz (with mount)
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Length: ~3.3 in (approx.)
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Eye Relief: Unlimited
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Use Compatibility: MSR rifles, shotguns, and pistols with Picatinny-rail systems
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Country of Manufacture: Import (SIG Sauer standard)
