SOTAC DI Optical EG1 Style Red Dot Sight

SOTAC DI Optical EG1 Style Red Dot Sight Aluminum Construction Airsoft RDS Sight (Anodized Aircraft) 12 Level Brightness Settings Fit To Mount on 20mm Picatinny Rail Powered by CR2032 Battery Operating Temp Range : -25.6 Deg ~ 160 deg F Adjustnebt Range : 40(+/-) CLICKS