DSA now makes its own receivers, here in the USA, perhaps to preclude bizarre BATFaggot regs.
I have a DSA "kit gun" or "parts gun" as they are called. Most of the parts are of Austrian STG-58 origin, but the receiver is Imbel. The kit guns many times have a different receiver than the rest of the parts because the original receiver had full auto capabilitites and the BATF makes the importer torch or cut the receiver apart for importation.
Your FAL is probably a very good one.
prambo