Leupold Base Cross-Slot Backcountry One-Piece Kimber 84l is a Leupold mounting system designed to securely attach optics and a compatible platform. The one-piece configuration and Picatinny / cross-slot interface allow for quick identification of the intended installation type.
The choice of the correct base depends on the firearm model, action length, hole pattern and threading, and the type of rings used. The geometry maintains system alignment without introducing unstated inclinations.
Before mounting, compare the firearm model, generation, and action length with the indicated compatibility. Also verify screw threading, hole spacing, and ring type; installation must be performed on an unloaded firearm, observing the torque values prescribed by the manufacturer.