I've got one of those, too. They're generally Israeli war trophies from 67 and 73 that came over in Israeli police seizures, but I guess it's not impossible that it's a Palestinian territory seizure. Yours is in relatively good shape comparatively.
That's one of the Beretta-produced contract guns, right?
Very cool, never actually seen one before.
I've got an early Helwan imported by the same folks.