The firearm change bill passed 119-1 after the last perusing in parliament.
It is relied upon to move toward becoming law inside the following couple of days in the wake of getting illustrious consent from the representative general.
PM Jacinda Ardern declared changes to the law after 50 individuals were killed a month ago by a presumed solitary shooter at two mosques in Christchurch.
Keeping down tears, she told parliament on Wednesday that they were there "due to the people in question and families". She said that when she visited the harmed in medical clinic none of them had only one gunfire wound.
"They will convey handicaps for a lifetime and that is before you think about the mental effect," she said.
"These weapons were intended to execute, and they were intended to harm and that is the thing that they did on the fifteenth of March," Ms Ardern told MPs.
Australian Brenton Tarrant, a self-broadcasted racial oppressor, faces 50 murder allegations and 39 endeavored homicide accusations.
What will change and how soon?
"Six days after this assault, we are declaring a restriction on all military style quick firing rifles (MSSA) and strike rifles in New Zealand," Ms Ardern said in a news gathering a month ago.
"Related parts used to change over these weapons into MSSAs are likewise being restricted, alongside all high-limit magazines."
An absolution has been forced so the proprietors of influenced weapons can hand them in, trailed by a repurchase conspire.
Injured individual named in NZ murder accusation is alive
How mass shootings have changed weapon laws
What are New Zealand's weapon laws?
Ms Ardern said the repurchase could cost up to NZ$200m ($138m; £104m), however "that is the value that we should pay to guarantee the wellbeing of our networks".
The leader has considered the Christchurch aggressor a psychological oppressor and said she won't articulate his name.
The shooter, outfitted with self loading rifles including an AR-15, is accepted to have changed his weapons with high-limit magazines - the piece of the firearm which stores ammo - so they could hold more shots.
Jacinda Ardern: 'A pioneer with affection on full showcase'
What are self loading weapons and attack rifles?
Quick firing weapons, otherwise called self-stacking guns, discharge one projectile for every trigger draw with no reloading required
They contrast from completely programmed weapons, which consistently shoot adjusts as long as the trigger is squeezed
A strike weapon can switch between self-loader or completely programmed modes
Self loading weapons are commonly guns, rifles and shotguns, including the AR-15 rifle
AR-15 rifles can release somewhere in the range of 45 and 60 rounds for every moment
