* Model : 4-16×50FIRF
* Power : 4~6
* Objective Diameter (mm) : 50
* Ocular lens diameter (mm) : 34
* Ocular length (mm) : 53
* Field of View (ft@100yds) : 29.3-7.3
* Filed of View (m/100m) : 9.8-2.5
* F.O.V. angle (°) : 5.6-1.4
* Exit Pupil (mm) : 12.5-3.12
* Coating : Green multi coated
* Number of lens : 13