Maybe try skinner sights
Front Sights
I make front sights to order. I make the ramp mounted standard height at .450" as measured from the bottom of the dovetail to the top of the sight. The barrel mounted front sight is standard at .650". I will make them any height the customer wants. They are simple to shorten with a flat file since they are a post sight. I make the blade standard at .050" wide, but I will make them any width the customer wants.”
Price: $11 which includes shipping and handling .
Material Blued Steel Brass
Sight base width