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Leupold Integral Mounting System (IMS)

Designed for AR and AR style rifles and for heavy tactical use, Leupold's new IMS system is available in Mark 1, Mark 2, Mark 4 and Mark 8 configurations, and features a monolithic, cantilever design that is strong and durable under the most intense conditions. The integral base/ring (formed from one piece of bar stock) affixes securely to the Picatinny rail of most AR and other tactical rifles. The one-piece design provides for easier mounting as ring spacing is pre-set, and more accurate return-to-zero as you only need to mark one location on the rail. For available mounts (1 inch, 30mm and 34mm)