This Thompson Center (Williams) manufactured green fiber optic short ramp front sight is for the later manufactured Thompson Center Omega in-line muzzle loading rifle when used with the Williams red fiber optic rear sight assembly and is in excellent condition with light wear. The mounting screw is sold separately.  (file photo)

Note: Thompson Center Omega muzzle loaders with the following serial numbers have been observed with this part:

Omega: VBZ4642

Omega X7:

Omega Z5: Z56443