Leupold 176915 Integral Mounting System Mark IMS Black Aluminum 34mm Tube Picatinny Rail Mount Shotgun Ammo It has eggcrate foam

It has eggcrate foam

one-piece design is built to endure with a proprietary polymer

adjustable reed assembly reproduces everything from grunts to bleats

Lapping Bars and Lapping Compound allow you to achieve the perfect fit between scope and rings

Leupold 176915 Integral Mounting System Mark IMS Black Aluminum 34mm Tube Picatinny Rail Mount Shotgun Ammo It has eggcrate foamThe Mark IMS family easily eliminates the two most common issues faced when mounting standard riflescopes to AR style rifles; scope height and eye relief. This model is designed to fit AR's MIL spec 1913 Picatinny rail and any scope with a 34mm maintube.