Leupold Mark 4 AR 30mm IMS - Scope Mount

Mounting a standard riflescope on an AR platform creates two common problems: scope height and eye relief. The Leupold Mark 4 AR 30mm IMS (Integrated Mounting System) solves both. Its forward cantilever design pushes the scope forward for improved eye relief and full field of view, while positioning the optic 1.4 inches above the rail — the same height as standard AR iron sights — for a faster, more natural sight picture.

The Leupold Mark 4 AR 30mm IMS is a one-piece CNC-machined aluminum integrated mounting system for AR-style rifles with Picatinny rails, designed for 30mm maintube scopes.

The forward cantilever design addresses the eye relief challenge common when mounting riflescopes on AR platforms, pushing the scope out to the proper position for a full field of view. At 1.4 inches above the rail, the optic sits at the same height as standard AR iron sights, making it faster and more natural to get behind the optic. The one-piece CNC-machined aluminum base and ring design eliminates separate ring-to-base alignment, providing a rugged and dependable connection between scope and rifle.

Fits any AR-style rifle with a standard Picatinny (MIL-STD-1913) rail. Accepts any scope with a 30mm diameter main tube. Ring height: 1.4 in. Keeper clamp torque: 65 in-lbs. Ring top screw torque: 28 in-lbs. Length: 5.43 in. Weighs 6.05 oz.

CNC-machined one-piece aluminum construction. No cant. Designed, machined, and assembled in the USA.

A direct solution for AR platform builders who need correct scope height and eye relief from a single, integrated one-piece mount.

Leupold builds every mount to be as rugged and dependable as the optics it holds. The Mark 4 AR IMS is made in the USA and guaranteed for life.