Objective Lens Diameter(mm): 30
Magnification: 1x
Exit Pupil Range(mm): 30
Field of View @100 Yds: 68
Optimum Eye Relief (in): UNLIMITED
Parallax Setting: 50 yds
Fits for: Fits all 20mm Picatinny And 11mm Weaver Rail
Battery: CR2032 Battery (Not included)