doublegunshop.com - home Forums General Discussion Classic & Custom Single Barreled Sporting Rifles @ doublegunshop.com Has anyone ever seen this front sight

I believe Tom used the over center concept, yes. The large pin fits snug to the front sight base, and the sight insert rotates around said pin. The screw on the top of the blade is for elevation adjustment of the sight. The small ball detent(appears to be) is a bit of a mystery. Possibly it was put in place as a “cushion” for the front sight insert snapping up. Or maybe it’s just an imperfection in the surface from the elevation screw.