RS-57-DISK-2L Aperture disk, large, 1/2" diameter, .093" aperture, fits Lyman RS-57-SML or RS-57-GPR sight

RS-57-DISK-2S Aperture disk. Small .040" aperature in large 5/8" disk fits RS57SML or RS57GPR. Special 7/32-40 thread .

RS-57-GPR Peep Rear Sight, adjustable, to fit Lyman Great Plains rifle

RS-57-SML Peep Rear Sight, adjustable, to fit Thompson Center, Lyman Deerstalker, Lyman Trade Rifle, and similar Hawken rifles

RS-66-A Lyman 66 Receiver Peep Sight, fits Winchester 1894 pre-angle eject

RS-66-LA Lyman 66 Receiver Peep Sight, fits Marlin 336, 1894, and 1895

RS-66-WB Lyman 66 Receiver Peep Sight, fits Winchester 1886 and Browning 1886 replicas

RS-1803 Rear sight, U. S. Model 1803 Harper's Ferry Rifle, wax cast steel

RS-AM-14 Rear sight, Allentown, Lehigh Valley style, fits up to 7/8" octagon, wax cast steel

RS-AM-16 Rear sight, Allentown, Lehigh Valley style, fits up to 1" octagon, wax cast steel