Function: Red/Green dot with VIS Laser
fit for: 20mm Picatinny Rail
Magnifier: 2x
Objective lens: 42mm
Eyepiece: 28mm 
Material: aluminum
Dot Color: Red/Green
Brightness level: 5 levels
Zero value: 1MOA
Field of view: 87' at 100 yards
Parallax: Parallax Free
Battery type: 1x Cr2032
Length: 165mm
Coating of the multi-layer lens.