This is serious, state-of-the-art technology for competitive shooters and tactical operators. The XTR II 4-20x50mm riflescope features a 5-times zoom system and 25% thicker tube construction than the original XTR? Riflescope. The front focal plane reticle design on this and all high-magnification XTR II riflescopes allows the reticle size to increase or decrease as magnification is increased or decreased. Trajectory compensation is always correct and proportional for the selected power setting. This reticle design is also called first focal plane or FFP. It has dimensionally-matched precision adjustment knobs and Zero Click Stop technology. High-performance optics offer Hi-Lume multi-coated lenses. The lenses optimize target resolution, contrast, and low-light performance. All hand-fitted internal assemblies are triple spring-tensioned for absolute shock-proofing, even under severe recoil. They are vibration resistant, even on extended vehicular patrols. And it?s protected forever by the Burris Forever Warranty? 11 brightness settings (spanning night vision, low light, and daytime), with a convenient battery-saver position between each setting Double internal spring-tension system allows the scope to hold zero through shock, recoil, and vibrations Ergonomic side focus, and easy-to-reach parallax adjustment from 50 yds. to infinity XT-100 click adjustment knob, with 100 clicks per rotation; can take most tactical calibers out past 1,000 yards in a single turn; knob provides easier calculations, faster adjustments, and less chance of getting lost on the dial Multi-turn adjustment knobs have either a 1/10-mil or 1/4 MOA click value adjustment and feature true Zero Click Stop; knobs offer 10 mils per rotation, with multi revolutions of adjustment An extended illumination area lets you engage targets at long distances even in low light 1/10-mil or 1/4 MOA ranging brackets at the top, left extreme, and right extreme of the crosshair, for precise ranging Horus H591 reticle, illuminated front focal plane Detailed milradian grid pattern provides multiple hold points to make quick elevation and windage adjustments in the field Use the hash marks on either side of the main vertical crosshair to engage moving targets Rapid Range Bars let you estimate the range to common-sized targets quickly and accurately ** BLEMISHED products may or may not include accessories. Image may not represent the exact product number.