There rules says nothing about being a factory option, just be of the same profile.
The Hogue rubber grips are available from the factory for every "REVOLVER" Smith makes J,K,L,N,and X. They are all shaped the same. The wood grips are all shaped the same.
Does Glock make grip tape as a factory option? I don't see that there is any difference, the profile is the same just a different surface.
I am only planning on shooting my K frame in production, I shoot my N frame in revolver already.