SPECIFICATIONS Model MO2 Versatile Reflex Sight Optical magnification 1x Aiming dot size: 3 MOA/Red Parallax Free Yes Unlimited Eye Relief Yes Lens Glass Colored Coating Yes Anti-reflex, all surfaces and high transmission Yes Battery type CR2032 Battery life - Day time use: 60,000h at lowest setting Battery Position Bottom Brightness Control Manual 10 (2 NV+8 Daylight) Motion Sensor No Low Battery Warning Yes Auto-turn off Yes Window Dimensions 1.1x0.79 inch/28x20 mm Optic Dimensions(LxWxH) 1.85 1.24 1.08 inch/47x31.5x27.5mm Weight (with Battery) 31g/1.09 oz Housing High Quality CNC Machined 6061 T6 Aluminum Housing Surface treatment Anodized Adjustment 1 MOA (100 MOA Windage & Elevation) Optic Interface Pattern Vortex Venom Waterproof IPX7 with its original interface