I am no expert in S&W revolver anything.

A. Are K frame sights interchangable?

B. I have a '67 Model 14-2 that had the rear sight removed to have an optic installed, not my mod. What is the correct rear sight for a 14-2?

C. Is it essentially a wild goose chase to try and find the correct sight and should I just install an aftermarket sight since the gun has been tapped for the optic anyway?

Any help to my silly question would be greatly appreciated.