Function: Red Dot With QD Mount

fit for: 20mm Picatinny Rail

Magnifier: 1x

Objective lens: 28mm

Eyepiece: 25mm 

Material: aluminum

Dot Color: Red

Brightness level: 11 levels

Zero value: 0.75 MOA

Field of view: 48 ' at 100 yards

Parallax: Parallax Free

Battery type: 1x CR2032

Length: 80mm

Coating of the multi-layer lens.