This X-Bolt X-Lock scope base is specifically designed for Browning X-Bolt rifles. Constructed from durable steel with a black gloss finish, this 2-piece mounting base system weighs 6.40 oz. Featuring the X-Lock mounting method for enhanced stability, it includes all necessary mounting hardware to deliver a secure, precise, and repeatable optic foundation. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.