An academic says the loophole that lets people buy "lethal" air rifles should be closed following the death of a south Auckland teenager.
Prof Kevin Clements of the University of Otago Centre for Peace and Conflict Studies, said air rifles should be sold only to gun licence-holders.
Anyone 18 years of age or older can own and use an airgun and anyone under the age of 18 can use an airgun if supervised by a firearms licence holder, or someone aged 18 or older.
"They don't require the same type of registration and background checks as an ordinary rifle but they have the same lethality and they need to be treated like any other weapon," Professor Clements said.
Air rifles were considered suitable for children and needed to be critiqued, he said.