The SIG Sauer ROMEO4T-PRO Red Dot Sight is a professional-grade tactical reflex optic engineered for pistols, modern sporting rifles, shotguns, and other Picatinny-equipped platforms. Featuring SIG’s Quad Ballistic Circle Dot™reticle system with multiple aiming options and MOTAC™ motion-activated illumination, the ROMEO4T-PRO delivers fast target acquisition with extended battery life. Built around a rugged CNC-machined aluminum housing and IPX-8 waterproof/fog-proof design, this sight includes multiple mount heights, flip-up lens covers, and an anti-reflection device (kill-flash), making it suitable for hard, professional use.
Key Attributes for the SIG Sauer ROMEO4T-PRO Red Dot Sight
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Brand: SIG Sauer
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Product Name: ROMEO4T-PRO Red Dot Sight
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Model: ROMEO4T-PRO / SOR44102 (example MPN)
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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: Quad Ballistic Circle Dot reticle system
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Options typically include 2 MOA dot, circle-dot, and holdover variations
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Reticle Color: Red
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Brightness Settings: 9 daytime + 3 night-vision compatible levels
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Power Source: (1) CR2032 lithium coin cell battery
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Battery Life: Up to ~50,000 hours runtime
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Motion Activation: MOTAC™ (Motion Activated Illumination)
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Housing Material: 7075-T6 CNC machined aluminum
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Finish: Matte Black (variants like Flat Dark Earth also commonly available)
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Water Resistance: IPX-8 waterproof and fog-proof
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Included Accessories:
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Clear flip-up lens covers
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Opaque flip-up front cover
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Anti-reflection device (kill-flash)
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Multiple mount spacers for different co-witness heights
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Mounting Interface:
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1/2-inch hex bolt mount with included spacers for absolute or lower 1/3 co-witness
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Adjustment: Windage & elevation adjustable (~100 MOA total travel)
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Height: ~62.5 mm
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Overall Length: ~67.5 mm
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Overall Width: ~50 mm
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Weight: ~6.3 oz
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Use Compatibility: Rifles, carbines, pistols, and shotguns equipped with Picatinny rails
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Country of Manufacture: Assembled in the USA (SIG Electro-Optics facility)