The imported Springfields came from Greece, not Portugal. There was a Portrugese/FMP version imported; I think it was called the G3S prior to the '89 EO restricting imports, and later changed to the XG3S after the '89 import ban and a thumbhole stock was added. If you're looking for an overstamped SAR-3, you'll notice the "8" is stamped slightly deeper than the rest of the letters and numbers on the receiver.