Corrections and Tourism Minister Kelvin Davis has handed his .22 semi-automatic rifle into police.
He told 1 NEWS it was the "right thing to do" in the wake of the Christchurch attacks last week.
"I owned a .22 semi-automatic rifle, with a 15-round magazine," he said.
"Leadership and responsibility should start at the top, the safety of New Zealanders is greater than my need to own a gun of this sort," he said.
Mr Davis said he handed it in earlier in the week and had used the rifle occasionally for hunting when he was at home in Karetu in Northland.
Less than a week after the tragic shootings in Christchurch, Prime Minister Jacinda Ardern announced a national ban on Military style semi-automatic guns.
To date, more than one thousand people have indicated to police they want to hand in their firearms.