1.9-inch "super high" height; Offers more than 2 inches of forward cantilever; One-piece design combines mount, rings; For 34mm-diameter scopes on MSR-style rifles; Maintains return-to-zero capability; Steel threaded inserts for cap screws; Skeletonized engineering for less weight compared to heavier designs; Fits AR-15, M-4, SR-25, LR308, PTR-91, and any other MSR with a Picatinny rail that is at least 3 inches long; Designed, made, and field-tested in the United States