Features: Objective lens diameter: 20mm Reticle type: Red Dot 2 MOA Mount type: Picatinny/21mm Optical zoom: x1 Reticle: 2 MOA dot. Reticle size: 2 MOA (6 cm at 100 metres). Reticle colour: Red. Magnification: x1. LED providing 50,000 hours of battery life with a CR2032 battery. 12 intensity levels, including 2 compatible with night vision. Shake Awake technology (turns on automatically when motion is detected). Brightness adjustment: Rotary knob. Parallax: None. Made of aluminium. Graduation: 1 click = 1/2 MOA. Operating temperature: -30°C to +60°C. IP67 certified red dot. Dimensions: L: 69mm, W: 36mm, H: 41mm. Comes with: 2 mounts for 21mm rail (top and bottom), mounting tool, microfibre cloth and CR2032 battery.