Leupold Mark 4 Tactical Base 20 MOA for Browning A-Bolt SA

Leupold Mark 4 Browning A-Bolt SA Base Features The Leupold Mark 4 Browning A-Bolt SA Base includes an integrated 20 MOA slope to shift the optic's line of sight forward preserving more internal elevation travel for extended-range shooting. Designed with flexibility in mind the base accepts both standard 6-48 shoulder screws and larger 8-40 screws giving shooters the option to mount optics with common hardware or upgrade to heavier fasteners for increased strength. Larger through-holes accommodate the thicker 8-40 screws while the modified 6-48 shoulder screw provides a secure fit for most factory receivers. The use of 8-40 screws increases mount strength by approximately 41 % making this base well suited for magnum calibers and high-recoil applications. Machined as a one-piece unit it delivers superior rigidity and consistent alignment helping maintain zero under repeated fire. Finished in matte black for a subdued non-reflective appearance this base is ideal for tactical hunting and precision rifle setups. Leupold Mark 4 Browning A-Bolt SA Base Specifications Manufacturer: Leupold Model: Mark 4 Tactical Base Firearm Fit: Browning A-Bolt SA 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