The Mark 4 Tactical spotting scope gives you the brightness and clarity necessary for positive target identification under any conditions. Built to survive shocks, blows, drops, and impacts, it's not only tough, it's also 100% waterproof and fogproof. 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.