Sightron scope s-tac 3-16x42 duplex target knobs 30mm sf FEATURES:Magnification:3-16XObjective Diameter (mm):42Focal Plane:Second Focal PlaneFov (ft@100 Yds.):32.3-6.1Eye Relief (in.):3.8-4.1Reticle Type:DuplexClick Value (@100 Yds.):1/4 MOAMinutes Per Revolution:15 MOAW/E Travel (@100 Yds.):70MOAKnob Style:Target(Resettable)Focus Type:Side Focus Parallax Range:10yds to InfinityFinish:Matte BlackWaterproof:YesWeight (oz.):23.3Length (in.):12.9Tube Diameter:30mm Other Features: Hunting & target shooting, duplex reticle, target turrets w/1/4 moa adjustments and are resettable to zero,zoom ring lever