Sig Sauer ROMEO-X Compact Open Reflex Red Dot Sight (Circle Dot, Shield RMSc Footprint)
The Sig Sauer ROMEO-X Compact is an open-emitter pistol red dot built around the Compact (Shield RMSc) footprint. It features a CNC-machined 7075 aluminum housing, distortion-free aspherical lens, and a low deck height for co-witness with standard-height iron sights on compatible slides.
MOTAC (motion-activated illumination) provides automatic on/off operation, with 12 daytime brightness settings plus 3 night-vision settings. A side-loading CR1632 battery compartment allows battery changes without removing the optic from the slide.