Integral Mount Lets You Use Both Iron Sight And Scope
Extra wide oval opening below the scope allows fast, unrestricted use of iron sights when you're too close to use a scope. All steel, four screw top strap gives 210° surface contact for recoil-proof strength. Integral aluminum base means lighter weight.
Big Book Catalog, Issue:68, Page:281
SPECS: 1" (2.5cm) I.D. Overall height approximately 2" (5.1cm). 3 oz. (85g) per pair. Aluminum lower half, steel cap and screws. Satin blue or brushed stainless finish.