This Thompson Center manufactured front sight screw is for the Black Diamond in-line muzzle loading rifle when using the 2nd or 3rd variation front sight and is in very good condition with light slot wear. (file photo)

Warning: this screw is not long enough to work properly for the Williams front sights with the shorter style ramp.

Note: Thompson Center Black Diamond in line muzzle loading rifles with the following serial numbers have been observed with this part:

Blue Finished Black Diamond: 33685, 35546, 52894, 58444, 58629 & 90912

Blue Finished Black Diamond Super 45 XR: R12322

Stainless Steel Black Diamond: S34981 & S37202