Leupold Mark 4 Two-Piece Picatinny-Style Base for Winchester 70 with 8-40 Screws

Leupold Mark 4 Two-Piece Picatinny-Style Base for Winchester 70 with 8-40 Screws

The Leupold Mark 4 Two-Piece Picatinny-Style Base for Winchester 70 with 8-40 Screws is a Leupold mounting system designed to securely connect optics and a compatible platform. The two-piece configuration and Picatinny/cross-slot interface allow for quick identification of the intended installation type.

Choosing the correct base depends on the firearm model, action length, hole arrangement and threading, and the type of rings used. The geometry maintains system alignment without introducing undeclared cant.

Key Features

• Series / System: Mark 4
• Configuration: Two-piece
• Mounting Interface: Picatinny / cross-slot
• Finish: Matte black
• Screw Threading Indicated: 8-40 thread
• Declared Compatibility: Mark 4 Two-Piece Picatinny-Style Base for Winchester 70 with 8-40 Screws

Product Identification

• Manufacturer Code / MPN: 59240

Before mounting, compare the firearm's model, generation, and action length with the stated compatibility. Also, verify screw threading, hole spacing, and ring type; installation must be performed on an unloaded firearm, adhering to the manufacturer's prescribed torque settings.