The aluminum Mark IMS family effectively addresses the two most common challenges encountered when mounting standard riflescopes on AR-style rifles - scope height and eye relief. Specifically designed for compatibility with your AR's MIL-spec 1913/Picatinny rail and any scope featuring a 35mm main tube, Leupold tactical Mark IMS series presents an integrated mount system tailored for AR use. The IMS mounts employ a forward cantilever design, positioning your scope towards the front of the rail, ensuring a wide field of view. Additionally, the mount centers the optic 1.5 inches above the rail, matching the height of open sights on a traditional AR. This alignment simplifies aiming through your scope without the need to adjust to a lower stock position. The connection between your scope and firearm is paramount. Therefore, our mounts exhibit the same ruggedness and reliability as Leupold optics themselves. With an extensive selection of mounting systems to choose from, you'll easily find the perfect match for your firearm and shooting style. Crafted in the USA and backed by a lifetime guarantee, Leupold mounts are engineered to withstand a lifetime of use, delivering unwavering performance.