Housing Material: Anodized Aluminum Alloy Power Source: 1 CR2032 Battery Battery Life: Up to 1 Year W&E Adjustment: 1 Click = 1 MOA Windage Adjustment Range: ±60 MOA Elevation Adjustment Range: ±50 MOA Object Lens Size: 20mm Object Lens Type: Red Multi-coatings What's in the box? 1 x Gaialoop Mini Red Dot Sight 1 x Gift Box 1 x Riser Mount 4 x Screws 2 x CR2032 Batteries 3 x Allen Wrenches 1 x Instruction 1 x Slotted Screwdriver Specification Reticle Size: 3.25MOA Reticle Type: Red Dot Illumination Wavelength: 650nm Parallax: Free@50yds