Rear Sight Base - 1st Variation - Original

Rear Sight Base - 1st Variation - Original

This Thompson Center manufactured first variation rear sight base is for the earlier Seneca muzzle loading rifle with the hole spacing 1/4" apart (center to center) and is in very good condition with light wear.  (file photo)

Note: Thompson Center Seneca muzzle loading rifles with the following serial numbers have been observed with this part: 16559

  • Manufacturer: Thompson Center
  • Manufacturer ID:
  • Product Code: 80459-Seneca
  • Availability: 5
  • $19.50