The Pro Gear Window Mount will stabilize your optic using 6061-T6 aluminum so you can spot and watch game from the comfort of your driver’s seat. Outfitted with a 3/8”-16 screw, the Spotting Scope Window Mount Clamp is compatible with Leupold's Pro Gear Panhead as well as most third-party options, and its rubberized clamp won’t scratch glass. Leupold Spotting Scope Window Mount Clamp 183551