JC 1x40 Red Dot

The Ultimate Red Dot Sight Get maximum peripheral vision with 40mm wide lens,  57' field of view at 100 yards Dual-color - green gives you instant target spotting during the daytime, while red gives less glare in the nighttime Mounts to any rail - standard 20mm or 11mm weaver and Picatinny rails Precise windage and elevation adjustments with any flathead or knife Single CR2032 battery required for operation 4MOA illuminated red or green dot/crosshair 5 brightness settings Built from extremely lightweight and durable aerospace aluminum alloy  What's In The Box: 1x40 Red Dot Front and rear lens cap Hex wrench 20mm and 11mm rail mount Mount onto any system in 5 seconds. Tool-less rail adaptors make mounting easier than saying 1, 2, 3. Switch between reticle colors. Green or red options allows you to use the sight during both night and daytime with zero glare. Adjust windage and elevation. Adjustments can be made on the fly with a flat head screwdriver or knife.