Nightforce Steel rings are designed for tactical, 1,000 yard benchrest, and other long-range applications. These CNC machined scope rings have a Parkerized matted finish and are sold in serialized matched pairs. Designed to mount to the Nightforce tapered bases, Picatinny rail mount, or most Weaver style bases. Three heights cover nearly all desirable applications including the much requested AR flat top model. All ring heights are measured from the top of the base to the center of the ring.
Sinclair, Issue:4A, Page:207