This is a used SIG Sauer ROMEO-RS Compact (SOR02130) with. I've used this 5 times in the range.
Reticle: 3 MOA Red Dot. Magnification: 1x (non-magnified) with a 24mm clear aperture.
Dimensions: 1.61" length, 1.12" width, and 1.10 height. Weight: Exceptionally light at 0.75 oz including the battery. Adjustment: 70 MOA total travel for both windage and elevation.
Construction: Polymer housing with a molded internal steel cage and aspherical glass lens. Battery Life: Up to 20,000 hours at medium brightness settings. Brightness: 8 manual illumination settings controlled by a large side-mounted button. MOTAC: Includes Sig's Motion Activated Illumination, which powers the dot on when it senses movement and shuts off after periods of inactivity to conserve battery.