Marlin Combination Receiver Sight, also known as L.L. Hepburn Sight. Mounts on the top of the receiver in factory drilled and tapped holes on antique Models 1893, 1894 and 1895 rifles. It is an all-round hunting and target sight, having all the advantages of a tang peep sight without its inconveniences. Has a folding leaf that may be used as a peep or open sight.