Is there an easy way to take the fields from 1 feature class and transfer those fields to a different feature class? I don't want to do a batch "Add Field". With all the domains it will take me a lot of time.
This might not be the most elegant way of doing it, but if you totally want to avoid the AddField route to solve the issue, you can (in ArcMap) do a join on the 2 feature classes on any 2 fields (of similar type) and then export the feature class. This will give you all the fields of both feature classes in the newly exported feature class.