Leupold Mark 4 One-Piece Base for Winchester 70 Short Action Adaptable to 8-40 Screws Matte Black
The Leupold Mark 4 one-piece base for Winchester 70 short action is a tactical steel mount with a Weaver/Picatinny-style cross-slot profile. The single-piece body stiffens the connection between the receiver and the scope and eliminates the need for alignment between two separate components.
Mark 4 bases are made of steel with a Weaver/Picatinny-style cross-slot profile and are designed to allow for the upgrade to 8-40 screws, which are more robust than the standard 6-48, when the action is already tapped or is being re-tapped. Leupold specifies torque settings of 22 in-lb for 6-48 screws and 28 in-lb for 8-40 screws.
Main features
Series: Leupold Mark 4
Configuration: one-piece
Material: steel
Finish: matte black
Ring interface: Weaver/Picatinny cross-slot
Screws: 6-48 standard, adaptable to 8-40
Torque setting: 22 in-lb with 6-48 screws, 28 in-lb with 8-40 screws
Recommended use
Stated compatibility: Winchester 70 short action. Accepts rings with a cross-slot mount, such as Leupold Mark 4, PRW2, and QRW2. Discontinued item: the Leupold product page for this SKU is no longer published.