I was just doing some brain storming "KK" must stand for something?
Koma, Kufstein just came to mind, by the way this company evolved into a rather serious gun manufacture .
It would not be unusual for a company to use its former name in identifying parts it has created. I am not jumping to conclusions but it's more than we have right now, as far as I know no one has identified what "KK" stands for?
They certainly could have made/ refurbished the parts for the Portuguese, but the "KK" markings on the P38's may occur too early for this theory to play out.
Need more research, this can be in the from of a negative or positive approach both are usually needed to weed out any errors.
I welcome any comments, can anyone show that my theory is wrong? " I know it probably is but, prove it"
By the way, it's Christmas Eve: Best Wishes to Everyone !
Vern