The Mark 4 20-60x80mm tactical spotting scope with the TMR reticle gives you the brightness and clarity necessary for positive target identification in any conditions with more magnification than its 12-40x60mm counterpart. Built to survive shocks, blows, drops, and impacts, it's not only tough, it's also 100% waterproof and fogproof.Boasting Leupold's Professional-Grade Optical System, it offers unmatched light transmission that's designed to outperform in the most challenging lighting conditions. Its industry leading glare reduction provides a clear image in harsh, direct light, while the resolution and clarity will meet the demands of any professional guide or shooter in the field.Countless military sniper teams have trusted the Mark 4 tactical spotting scope. You can depend on it, too. This rugged spotting scope is designed, machined, and assembled in the USA and is guaranteed for life.