Leupold IMS Mount for Mark AR, 35 mm

• One-piece integrated design: The base and rings are built as a single aluminum unit, which simplifies installation and helps keep the scope aligned under recoil.
• AR-height optic position: The mount places the scope at a height suited to AR-style rifles, making it easier to achieve a natural head position and consistent sight picture.
• Forward cantilever layout: The Mark AR geometry moves the optic forward on the rail, helping solve eye-relief limitations that often appear when fitting standard riflescopes to flat-top rifles.
• 5-bolt clamp with 3 recoil lugs: This mounting system is designed to hold firmly on a Picatinny rail, giving the scope a stable interface that supports repeatable zero.
• 35 mm scope compatibility: It is built for scopes with a 35 mm maintube, providing a direct fit for larger-tube optics without separate rings and base selection.

About the Leupold Integral Mounting Systems (IMS) Series

Leupold Integral Mounting Systems (IMS) are built around a simple idea: combine the base and rings into one rigid mounting unit that installs directly on a Picatinny rail. Within Leupold’s mount lineup, the IMS family covers both AR-style and bolt-action applications, with current versions offered for 34 mm and 35 mm scope tubes and selected variants with 20 MOA of cant. That makes the series relevant to shooters using modern tactical optics, precision rifles, and AR-platform carbines that need a secure and repeatable mounting solution.

A defining trait of the AR-style IMS models is their forward cantilever layout. This design addresses two common setup problems on flat-top rifles: getting a standard riflescope far enough forward for proper eye relief, and placing it at a practical viewing height. In use, that means a more natural shooting position and fewer compromises when pairing a conventional scope with an AR-pattern rifle. Across the series, the emphasis is on straightforward installation, solid rail engagement, and a compact one-piece structure that reduces the number of separate parts in the mounting system.

About the Leupold IMS Mount for Mark AR, 35 mm

The Leupold IMS Mount for Mark AR, 35 mm is a one-piece mount for shooters who want to fit a 35 mm maintube riflescope to a Picatinny rail without the trial and error that often comes with separate rings and bases. Its integrated construction keeps the optic and mount working as one unit, which helps maintain alignment and gives the scope a stable platform for repeatable performance.

What sets this model apart is its Mark AR cantilever geometry. On AR-style rifles and similar platforms, receiver rail space is often limited, and standard scope placement can leave the eyepiece too far back. By extending the optic forward, this mount helps achieve proper eye relief while keeping the shooting position comfortable and consistent. That matters in practical use because a stable head position supports faster target acquisition and more reliable shot execution.

The mount is made from aluminum, which keeps weight manageable while still providing the rigidity expected from a serious riflescope mount. Leupold also uses a 5-bolt clamping system and 3 recoil lugs on the underside to secure the mount to the rail and resist movement under recoil. With a 1.5 in ring height, 5.43 in overall length, and 6.25 oz weight, it is configured to suit AR-pattern rifles and other firearms with a Picatinny interface where correct optic height and dependable retention are priorities.

About Leupold

Leupold & Volpel was founded in Portland, Oregon, in 1907 by Fred Leupold and Adam Volpel. The company later introduced its first riflescope, the Plainsman in 1947, and in 1962 it brought out the Duplex reticle, a design that became widely established in sporting optics. Leupold moved its manufacturing plant and headquarters to Beaverton in 1968, and Leupold & Stevens, Inc. remains headquartered there today.

Leupold is a family-owned American optics manufacturer focused on hunting, shooting, and outdoor observation. Its product range includes VX-series sporting riflescopes, Mark-series tactical riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics. That broad experience in sport optics is directly relevant to its mounting systems, which are designed to support the same practical demands as the company’s riflescopes: secure fit, repeatable alignment, and dependable field use.

Main Features

• Manufacturer: Leupold
• Series: Leupold Integral Mounting Systems (IMS)
• Product type: Complete mount
• Scope / sight compatibility: 35 mm
• Rail compatibility: Picatinny Rail
• Material: Aluminium
• Made in: USA
• Adjustable windage: No
• Extension: KR 0.0 mm
• Weight: 6.25 oz
• Length: 5.43 in
• Ring height: 1.5
• Base cant: No
• Keeper clamp torque: 65 in-lbs
• Ring top screw torque: 28 in-lbs
• Rear offset: .68
• Front offset: 1.75
• Ring depth: .65
• Length within rings: 3.46
• Keeper length: 3.68
• Ring width: 1.98

Warranty

10 years. This mount is covered by a 10-year warranty.

In the Box

• Leupold IMS Mount for Mark AR, 35 mm