
Ncstar Tri-Rail Series 3-9x42 Compact Scope/3 Rail Sighting System/Blue Ill. Rangefinder/Weaver Mount Specifications: Magnification:3x-9x Tube Dia. 44mm Objective Dia. (Mm) 42.00 Fov (Feet At 100 Yards) 36.7 ? 12.00 Eye Relief (In) 2.0 Exit Pupil(Mm) 9.