Are gun silencers legal in Australia, more pecific NSW?
No – They are specifically banned in the Weapons Prohibition Act 1998: WEAPONS PROHIBITION ACT 1998 – SCHEDULE 1 SCHEDULE 1 – Prohibited weapons 4 Miscellaneous articles (3) Silencers or any other device designed for attachment to a firearm for the purpose of muffling, reducing or stopping the noise created by firing the firearm. See http://www.austlii.edu.