The 5-20x50 AO Varmint Rifle Scope will elevate your hunting and target shooting experience to the next level. The 5-20x Magnification features a 4-time zoom ratio perfectly suited for close to mid-range, as well as precision long range shooting. The second focal plane Glass Etched Trace MOA IR Reticle illuminates in red & green with five brightness settings for each color, and only the center of the crosshair will illuminate to prevent potential washout of your target and sight picture. The Capped Target Turrets are precision designed with tactile & audible MOA adjustments, and include a Zero Reset feature to bring you back to your original zero after adjusting your elevation for extended ranges. The Adjustable Objective on the bell housing will focus from 50 yards to infinity eliminating any parallax issues. The large 50mm Objective Lens provides impressive low-light clarity, and all air-to-glass lenses are Fully Multi-Coated for superior light transmission. The 5-20x50 AO Varmint Rifle Scope is as at-home on the range as it is in the field. Backed by BARSKA 's Limited Lifetime Warranty.