Hawke Sidewinder 30 SF 6-24x56, 20x Half Mil IR Reticle, 30mm Tube 30mm aluminum tube 56mm objective Resettable locking turrets with witness window Side focus, 10 yards to infinity Removable index-matched rangefinding 4" sidewheel Ultra-wide angle 24 FOV (21.3-5.4ft @ 100 yards) High volume eyebox 102mm (4") eye relief with .37"-.09" exit pupil Elevation and windage adjustment range: 20 MRAD, in 1/10 MRAD increments 14.3" long, 27.3oz High grade, low dispersion crown glass 18 layer fully multi-coated lenses Removable zoom magnification throw lever Fast focus eyebell with lock ring Nitrogen purged Shockproof Waterproof Fog proof Hawke no-fault lifetime warranty 20X second focal plane (SFP) half mil reticle with additional .2 mil outer markings and crosses on lower portion Multi-LED high intensity red illuminated etched glass reticle