Leupold Mark 4 Tactical Base 20 MOA for Winchester Model 70 LA

Leupold Mark 4 Winchester 70 Long Action Base Features The Leupold Mark 4 Winchester 70 Long Action Base features an integrated 20 MOA slope to support extended-range shooting by preserving usable scope elevation. This Mark 4 tactical base is designed to accommodate both standard 6-48 shoulder screws and larger 8-40 screws offering flexibility for factory configurations or rifles that have been drilled and tapped for increased strength. The larger 8-40 screws increase mounting strength by approximately 41 percent making this base well suited for magnum calibers and demanding recoil conditions. Machined as a one-piece unit the base enhances rigidity and ensures consistent optic alignment under repeated firing. Oversized through-holes accept the thicker 8-40 screws while the modified 6-48 shoulder screws allow compatibility without compromising fit. Finished in matte black for a non-reflective appearance this base is built to perform in tactical competition and long-range hunting environments. Leupold Mark 4 Winchester 70 Long Action Base Specifications Manufacturer: Leupold Model: Mark 4 Tactical Base Firearm Fit: Winchester Model 70 Long Action Mount Configuration: One-Piece MOA Incline: 20 MOA Mount Type: Picatinny Style Material: Aluminum Finish: Matte Black Screw Compatibility: 6-48 Shoulder Screws 8-40 Screws Application: Long-Range High-Recoil Rifles