Ready your rifles with the versatile Mark 4HD 2.5-10x42 scope.  The Mark 4HD series provides you with an accurate and reliable option for close-quarter shots, long-range precision, and everything in between. They’re available with a three-turn elevation dial for confidence at extreme distances and a precise ZeroLock windage adjustment that won’t turn when knocked around.  And like all Leupold riflescopes, they’re Waterproof, Fogproof, and backed by Leupold's lifetime guarantee.

The scope features a 30mm Main Tube and an Illuminated First Focal Plane TMR reticle. 

Leupold Model #: 183738.  

More information can be found here:  Leupold Mark 4HD 2.5-10x42