Each model in the Backcountry series is engineered using 7075-T6 aluminum, making them among our lightest and most durable mounts to date. These Backcountry ring mounts are designed to attach directly to a Kimber 8400 and are compatible with any riflescope featuring a 1 inches main tube. The connection between your scope and firearm is of utmost importance, which is why our mounts are as robust and reliable as the Leupold optics they support. With an extensive range of mounting systems available, you are certain to find the ideal match for your firearm and shooting style. Manufactured in the USA and guaranteed to withstand a lifetime of rigorous use, Leupold mounts are built to never disappoint.