Bubba worked on the front sight of the Ruger Mk II target pistol with the heavy tapered 6 7/8" long barrel. It seems that no one carries these any more.
The Ruger P/N is A01501 and it is the one with the "hook" on it. It has to be drilled before installing.
If you have one of these to sell, give away, etc. Please PM me.
Have a blessed day,
Leon