My 12 gauge Frederick Williams SXS had a small pin (not a screw) at the center of the large diameter cross pin through the action bar at the knuckle. This pin is missing from both sides of the action and it is possible to see clear through the aperture. The gun functions and shoots flawlessly, nevertheless. I would like to replace this pin even if its presence is only cosmetic. Any ideas on a parts source?

JKBvF