Function: ACOG，4x32 Scope

fit for: 20mm Picatinny Rail

Magnifier: 4x

Objective lens: 32mm

Eyepiece: 28mm 

Material: aluminum

Dot Type: crosshair

Parallax: Parallax Free

Battery type: 1x ACOG

Eye relief (mm): 30mm

Coating of the multi-layer lens.