More than 56,000 weapons have been handed to authorities in New Zealand during a six-month amnesty.
The buy-back scheme was launched when authorities banned semi-automatic weapon in response to the killing of 51 people at two mosques in Christchurch.
The ban was agreed by parliament weeks after the 15 March shootings - the worst in modern times in New Zealand.
Australian Brenton Tarrant, a self-proclaimed white supremacist, has been charged and faces trial next year.
