Leupold Mark 4® Cross-Slot Mount — 35 mm rings for Picatinny

The Leupold Mark 4® cross-slot mount is an aluminum, precision-machined mounting solution engineered to secure any 35 mm main tube scope to a Picatinny rail. Built to the same exacting standards as Leupold optics, the Mark 4® cross-slot system provides rock-solid integrity and a lifetime of reliable service.

Key benefits

• Precision fit: machined with tight tolerances for superior repeatability and zero retention.
• Proven cross-slot design: rugged geometry that resists torque and maintains alignment under heavy recoil.
• 35 mm rings (high): ideal for larger objective optics or aftermarket objective bells/rail clearance.
• Picatinny compatibility: fast, secure mounting to standard MIL-STD-1913 rails.
• Made in the USA: manufactured to Leupold’s quality standards and guaranteed to hold up to a lifetime of abuse.
• Wide selection: available in multiple heights and configurations to match your firearm and shooting style.

Technical specifications

Usage & installation notes

• Follow specified torque values: keeper clamp 65 in-lbs, ring top screws 28 in-lbs — use a calibrated torque driver for repeatable results.
• Verify proper rail engagement and contact surfaces are clean before final torque, re-check zero after initial firing.
• Choose the correct height and ring spacing for your scope’s objective and reticle clearance, contact us if you need help matching rings to your rifle and optic.

Ready to secure your optics with confidence? Add the Leupold Mark 4® cross-slot mount to your setup for industry-leading rigidity and lifetime-grade reliability.

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