Athlon Optics 4.5-29x56 Cronus BTR GEN2, APLR5 FFP, 1/4 MOA, 34mm Tube 4.5-29x magnification 56mm objective lens 34mm aircraft-grade aluminum tube Exposed turrets Precision zero stop UHD glass 3.6-3.8" eye relief 25 yds to infinity side parallax adjustment 24.8-3.83 feet Field of view at 100 yards 1/4 MOA Click Value 25 MOA adjustment per rotation 110 MOA total elevation adjustment 64 MOA total windage adjustment 14.4" long 35.8 oz Illuminated APLR5 FFP (First Focal Plane) MOA Etched Glass Reticle Advanced Fully-Multicoated lenses XPL protective coating Heat-treated one piece tube Waterproof Fogproof Shockproof Argon purged Lifetime warranty