will S and W drill and tap my 686-3?

[robvasi]

Will Smith and Wesson drill and tap my 686-3?
I'd like to install a picatinny rail for a red dot sight.

 

[bigggbbruce]

(800) 331-0852

 

[murphydog]

There were/are "no gunsmithing" optic mounts, may want to look for one before having metal alterations done?