Viridian RFX35 Reflex Sight 1x22 Micro Green Dot RMR Mounting Black 3 MOA green dot reticle;22 mm x 26 mm viewing window;RMR footprint with included Picatinny mount;Instant-on activation with user control;Auto shutoff after 2 minutes;Eight visible and two night vision brightness settings;Battery life up to 30,000 hours;Uses one CR2032 battery;Constructed from 6061-T6 aluminum alloy;IPX6 water resistant;Operating temperature: -4 degrees to 130 degrees;Dimensions: 1.93 in x 1.16 in x 1.2 in;Weight: 1.0 oz;Includes installation toolstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 4000 Product Group Code: 4000L Product Sub Group 1: 4000L1 Inactive: No Second Color: Green Flammable: ORMD