Pick up a Mark 5HD™ 3.6-18x44mm and you'll see and feel the difference. It's 20 ounces lighter than other scopes in its magnification range, giving you an advantage in the field or at the range. The 3.6-18x magnification range helps you engage close targets, while also giving you the flexibility to stretch out to further distances. 

The Mark 5HD is built around Leupold’s Professional-Grade Optical System, which offers unmatched light transmission, glare reduction, with resolution and clarity that meets the demands of any professional shooter.

And like all Leupold riflescopes, they’re waterproof, fogproof, and backed by Leupold's lifetime guarantee.

The scope features a 35mm Main Tube and an Illuminated First Focal Plane PR2-Mil reticle. 

Leupold Model #: 182943

More information can be found here:  Leupold Mark 5HD 3.6-18x44