Function: 4X FXD Magnifier with Adjustable QD Mount

fit for: 20mm Picatinny Rail

Magnifier: 5x

Objective lens: 34mm

Eyepiece: 30mm 

Material: aluminum

Zero value: 0.5 MOA

Field of view: 115 ' at 100 yards

Parallax: Parallax Free

Length: 100mm

Coating of the multi-layer lens.