Re: S&W 686 Rear Sight Elevation Adjustment - Help Please
You are exactly right. Apparently what happened was that I had raised the rear sight enough to allow the elevation adjustment screw to become separated from the elevation stud. Then when I lowered the sight, the stud wasn't engaged with the screw. When I removed the rear sight assembly I found the problem thanks to your input. Everything is back to normal now and working as new. Thanks so much for your help!