This Ruger manufactured rear sight elevation screw is for the old model 3 screw Single Six single action revolver and is in very good condition with light slot wear.  (file photo)

Info: The second variation rear sight elevation screw on new model Single Six revolvers is slightly longer in length but should work as a substitute if this item is out of stock.

Note: Ruger old model Single Six revolvers with the following serial numbers have been observed with this part: 564324 & 60-38236.