Issues surrounding rapid-fire shotguns on the Australian market must be dealt with but illegal firearms remain Australia's biggest gun problem, NSW Deputy Premier Troy Grant says.
Mr Grant says the classification and capacity of the controversial Adler shotgun needed to be addressed once the federal election was out of the way.
"We have to make sure that if they're allowable that they're classified in the right way so they're only being used for the right purpose by responsible and checked-out firearms holders," Mr Grant said outside a national policing summit probing counter-terror responses and gun laws.
However, Mr Grant said the flood of illegal firearms into the country remained the critical gun control issue.
"The challenge we face in NSW is not with legal or registered guns or legal firearms owners ... less than two per cent are reflected in crime-related activity," he said on Wednesday.
"Our challenge is illegal guns, it's about what we can do on the border control of that, in partnership with the federal government.
"We need to go after the illegal guns and put our resources and focus there, because that's where the problem is."
Mr Grant said he did not want to see the National Firearms Agreement watered down.
Earlier, federal Justice Minister Michael Keenan said a Sydney teenager's arrest on terror charges made plain the need to invest in crime-fighting intelligence and surveillance.
Mr Keenan promised the Australian Federal Police $1.6 million to drill down on "big data" on social media platforms to reveal threats, unlock criminal plans, and thwart radicalisation and recruitment drives.
He also pledged $1 million for the Australian Crime Commission for real-time transfers of intelligence between surveillance teams.
Mr Keenan said the security situation facing Australia was increasingly complex, uncertain and rapidly evolving, with terror threats soaring to unprecedented levels.
He said the weekend's Orlando shooting massacre also drove home the need to bankroll counter-terror efforts.
Mr Grant said the funding boost was welcome, but more cash would be needed to fight terror down the track.
"Any additional investment into this armoury for our police jurisdictions is welcomed, but I don't think it will ever be definitive for the future needs combating this horrendous crime," he said.
