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Sig Sauer ROMEO4S 1x20mm


Designed for modern semi-automatic pistols, MSR platforms and shotguns
Short and medium range engagements and recreational shooting across a wide range of calibers and light conditions
Extremely strong and light CNC aluminum housing
Runtime in excess of 100,000 hours with solar and battery usage
Comes standard with see-through lens covers and quick-release mount
Ballistic Circle-Dot and Ballistic Circle QuadPex reticle options
Users can select from 4 different integrated reticle options (Dot, Circle-Dot, Dot with Holds, Circle-Dot with Holds)
Unlimited eye relief to acquire aiming point and target, regardless of eye position behind sight.
MOTAC (Motion Activated Illumination) powers up or down when sensing motion
Uses an ultra-efficient red LED illumination for daylight visibility and extended runtime
True co-witness QR mount and low mount included
Strong, lightweight aircraft-grade CNC aluminum housing
Waterproof, IPX-7 rated, and fog-proof.

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SKU: SOR43021 Category: Tag:



SIG SAUER Electro Optics are guaranteed forever. It’s an unlimited lifetime guarantee.


Activated through motion sensing technology, MOTAC immediately powers up illumination when it senses motion and powers down when it does not in order to extend battery life.


Highly efficient, ultra wide broadband, anti reflection lens coatings reduce surface reflections to extremely low levels across the entire visible spectrum providing superior light transmission.


Electro Optics industrial design inspired by our legendary firearms; deflection armor trapezoidal surfacing breaks up the shape and visibility of the optic. Additionally the pistol slide serrations and grip checkering to add function to the form of all SIG SAUER electro optics.