After looking for awhile I finally found a 999 locally to me.  It is a 40s model that functions perfectly currently but I am looking for pick up some parts in case it breaks...since they aren’t getting any easier to find.

The hammer on this pistol is the hammer mounted firing pin  version and I have seen that there are many other H&R 22s such as the 926 (and others) whose hammers look the same.

Does anyone know if these parts are interchangeable?

It’s the one on the right.
Attached File


This picture is to show the hammer I have, not to ask if these two parts are interchangeable.