The gun used by Sydney siege gunman Man Haron Monis was one of an estimated 250,000 unregistered "grey market" weapons in Australia, an inquest has heard.
Counsel assisting the inquest Jeremy Gormly SC said the pump-action shotgun was imported into Australia in the 1950s but had never been registered, nor turned in under the 1996 compulsory gun buyback.
A photograph of the weapon, displayed in court on Monday, showed how the gun had been crudely cut down with a hacksaw or similar coarse blade, Mr Gormly said, shortening it by more than 60cm to allow it to be easily concealed.
- AAP