A couple possibilities:

https://www.brownells.com/optics-mo...-k-l-n-frame-scope-mount-prod120980.aspx

https://www.brownells.com/optics-mo...w-k-l-n-frame-scope-mount-prod26011.aspx

But mainly I would question why one would put one on a 4" S&W? 7" or more, I can see it...

Anyhoo - Weigand Combat makes pretty good stuff..


Ex- USN (SS) '66-'69
Pro-Constitution.
LET'S GO BRANDON!!!