TASCO Rimfire 3-9x40 Black FC, Rings TruplexThe 3-9x40mm configuration provides big game style performance for rimfire rifles. It is designed to allow you to take your rimfire rifle to the maximum of its capabilities and to provide extreme versatility.Teknisk:Power/Obj. Lens (mm): 3-9x40Field of View (ft.@100yds./m@100m): 32-11/10.7-3.7Lens Coating*: Fully CoatedFocus Type: Fast Focus EyepieceParallax Setting (yds./m): 50/45.7Eye Relief (in./mm): 3.5/90Reticle Type: TruplexWindage/Elevation: .25 MOATube Dia.: 1 inchWeight (oz./g): 11.6/330Length (in./mm): 12.2/309Finish: Matte BlackExit Pupil (mm): 14/4.4Model: TRF3940