Does anybody know when the pinned front sight was introduced on the 686? Especially the 4". I have a -3 made in 1989 and it does not have a pinned sight. But I was looking at one on Gunbroker with a pinned sight (4" barrel like mine) and it had a pinned sight. The S&W 4th edition does not specify the pinned from barrel with dash changes that I can see.
Thanks.
Thanks.