Marble's Improved Tang Peep Sight Base American Arms 1874 Sharps, Browning 1885, Cimarron 1866, 1873, Uberti 1866, 1873, Rossi 65, 1892, Uberti 1873, 1886, Winchester 53, 55, 64, 65, 1885, 1892, 1894
Marble's Tang Peep Sight 1874 Sharps by Armi San Marcos, EMF, Taylor Steel Blue
Remington Magazine Remington Four, 74, 740, 742, 7400 25-06 Remington, 270 Winchester, 280 Remington, 30-06 Springfield, 35 Whelen 4-Round Steel Blue