We have a long history of manufacturing rugged and reliable riflescopes that outperform and outlast everything else on the battlefield and in competition. We used that heritage to create an extremely versatile line of tactical scopes for the shooter looking to upgrade every long gun in their safe. With one of the most popular magnification ranges out there the Mark 3HD 3-9x40mm makes short work of almost any shot while the 30mm maintube gives you ample adjustment when you need it. – Complete with MIL-based adjustments and reticles HD performance an exposed elevation adjustment dial and a low-profile power selector with integrated throw lever the Mark 3HD series is perfect for anyone who needs a rugged precise and repeatable scope. Built around Leupold’s Elite Optical System it offers the light transmission glare reduction and resolution that diehard hunters and shooters demand for all-day performance. – And like every Leupold riflescope the Mark 3HD was designed machined and assembled in our Oregon factory. We test it to ensure it’s absolutely rugged 100% waterproof and fogproof and then we guarantee it for a lifetime of performance. – 3:1 Zoom Ratio – Custom Dial Compatible – Waterproof Fogproof & Shockproof