Queensland's Opposition Leader says he does not take "riding instructions from Canberra" and could block the Prime Minister's proposed restrictions on the Adler shotgun.

Malcolm Turnbull and state and territory leaders have agreed to put the seven-shot lever action Adler gun into the most restrictive ownership category, meaning it would only be available to professional shooters in certain conditions.

But each jurisdiction must endorse the change before it takes effect, which could be a sticking point in Queensland's hung Parliament.

If the Liberal National Party (LNP) joins with Katter's Australia Party in Queensland and votes against the change they would only be one vote short of vetoing the deal.

LNP leader Tim Nicholls has not ruled out blocking the restrictions, and says there has not been enough consultation with gun owners.

"We'll have a look at it and we'll act in the best interests of Queenslanders, we don't take our riding instructions from Canberra," Mr Nicholls said.

"We already have strong laws in Queensland that protect people and make sure only the right people can get those sorts of weapons.

"We want to understand exactly why it is that it's thought necessary to ban it.

"We don't think you should just ban these outright, you should understand exactly what the need for them is."

Katter's Australia Party opposed

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Crossbench MP Robbie Katter has previously said politicians shouldn't be fighting over the Adler shotgun when more dangerous guns are still available.

"It's political point scoring and Katter's Australia Party will be stopping any playing around with these issues," Mr Katter said.

"It'll be up to the LNP, as well, they've got to stand up on this issue."

Premier Annastacia Palaszczuk said she would be "extremely concerned" if the LNP kill off the Adler reclassification.

The Adler gun currently sits in the least restrictive category, however gun control lobbyists say it can fire seven shots in quick succession and should be harder to obtain.