Posted by mrt949:JAPLE,
Is that a older T.C .REAR SIGHT .verry inventive to say the least.
You nailed it!
I wanted a sight that would give me the longest sight radius I could get and a big blade. Digging around in the sight box, I found this sight from an early '80s Contender. It was designed for a slightly smaller diameter barrel, but it's real close and the screw holes lined up. I had to relieve (read: hog out) the underside of the sight so it would clear the Ruger's takedown pin.
It's just what I was looking for.