Function: 551 Red/Green dot

fit for: 20mm Picatinny Rail

Magnifier: 1x

Objective lens: 33 x 27mm

Material: aluminum

Dot Color: Red/Green

Brightness level: 10 levels

Zero value: 0.5 MOA

Field of view: 126 ' at 100 yards

Parallax: Parallax Free

Battery type: 4x AG13

Length: 104mm

Coating of the multi-layer lens.