The gun reform bill also enacted a ban on pump action shotguns with detachable and non-detachable magazines and parts that enable firearms to be converted into more powerful weapons.
Northland Police Inspector Chris McLellan said police were pleased with the turn out of Gun owners.
He said police were aware there were illegal firearms in the community and would take action to recover those firearms.
The firearms and accessories that were collected were to be destroyed, which was done nationally and was consistent throughout the country.
"A lot of people are sad to see their firearms go but all are in support of what we want to achieve and that's about keeping people safe and getting firearms such as these off the market and destroying them," McLellan said.
The next buyback events in Northland will be on Tuesday (23 July) at Hikurangi Bowling Club, 3-7pm and on Wednesday (July 24) Barge Park, Maunu, 3-7pm.