Function: SRS Style 1x38 Red Dot (NO Solar Cell )， Wide field of view

fit for: 20mm Picatinny Rail

Magnifier: 1x

Objective lens: 38mm

Eyepiece: 28mm 

Material: aluminum

Dot Color: Red

Brightness level: 8 levels

Zero value: 1 MOA

Field of view: 82 ' at 100 yards

Parallax: Parallax Free

Battery type: 1x AA

Length: 110mm

Coating of the multi-layer lens.