This Thompson Center manufactured third variation rear sight assembly is for the Cherokee muzzle loading rifle with the hole spacing 9/16" apart (center to center) and is in very good condition with light wear. The third variation rear sight has the second variation base and the second variation upper assembly. The mounting screws are sold separately.  (file photo)

Note: Thompson Center Cherokee muzzle loading rifles with the following serial numbers have been observed with this part: 15251 & 15575