The Leupold Integral Mounting Systems (IMS) family quickly and easily eliminates the two most common issues faced when mounting standard riflescopes to AR-style rifles; scope height and eye relief.

Each aluminum IMS cantilever design mounts directly to the firearm's Mil-Spec 1913 or Picatinny to raise the scope and push it forward, eliminating the need for risers or specialized optics with shortened eye relief. All Leupold IMS products are tested to endure the rigors of the field and are covered by the Leupold Full Lifetime Guarantee.

- The Mark 4 line takes versatility to the extreme, providing modular components for interchangeable adaptability.
- Use the Mark 4 Base in conjunction with the 20-MOA Integral Rail insert, 1” Integral Ring insert, 30mm Integral Ring insert, or to securely attach the Leupold Mark 4 CQ or T® or HAMR™ directly to the firearm.
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