Can't have happened in the OZ military system, this weapon would not even exist now. As per the EMEI this would have had the woodwork removed, S/N defaced and 5 cuts by oxy or a cutting wheel through the receiver, knox, and 3 more cuts equidistant across the barrel. All dumped into a bin marked ferrous, for scrap.
Any suggestions where it was done. I recall about 30 others in the batch with this one.