The Sig Sauer ROMEO2 1x30mm Red Dot Sight comes in three models/configurations, with the only difference being the reticle of each model. Model #SOR21000 has a Circle Dot Dual Reticle. Model #SOR21300 has a 3 MOA Red Dot Reticle. Model #SOR21600 has a 6 MOA Red Dot Reticle.
The Sig Sauer ROMEO2 1x30mm Pistol Red Dot Sight is built for use in adverse conditions. A 3 MOA or 6 MOA red dot with 15 brightness settings ensures rapid target engagement. The red dot sight features a high-efficiency, point source LED emitter and molded aspheric glass lens, utilizing a high-performance red notch reflector coating for awesome brightness and light transmittance with zero distortion. The 7075 aluminum housing and ruggedized steel shrouds protect the Sig Sauer ROMEO 2 from extreme impacts and drops. The ROMEO2 maintains 25,000 hours of battery life, comes with MOTAC to automatically power the optic on and off, and is compatible with all SIG pistols that have the newer PRO-CUT slide.