Labor has called on the Turnbull Government to extend a weapons importation ban to cover a new shotgun, despite the firearm meeting current requirements.

A new version of the Adler lever-action shotgun is being imported into Australia, having met the requirements of a year-long importation ban prohibiting weapons that can fire more than five rounds without reloading.

The new model fires five rounds from the one magazine and, as such, is not subject to the ban put in place following the Martin Place siege.

An eight-round Adler model, which had been due for importation earlier this year, had already attracted 7,000 pre-sales from a Queensland importer prior to the ban being put in place.

Acting Shadow Minister for Justice Graham Perrett called on the Turnbull Government to extend the weapons ban to cover the five-shot weapon, citing extreme concerns over the firearm.

Mr Perrett also urged Prime Minister Malcolm Turnbull to extend the ban until the National Firearms Agreement review is complete.

He said if imported, the weapon would be available to 700,000 licensed recreational shooters.

"The Liberal Government must immediately act," Mr Perrett said.

"As gun technology is updated, our laws should be reviewed to ensure that it keeps up with the advances in technology. Malcolm Turnbull can put safety before politics."

Mr Perrett acknowledged the majority of firearm owners complied with legislation, including that introduced by former prime minister John Howard in the wake of the 1996 Port Arthur massacre.

But Liberal Democratic Senator David Leyonhjelm told the ABC the newest version did not represent any changes from models already available in Australia, saying such weapons "have been on the market for years".

"There is nothing new about it," he said.

Queensland importer of the product Robert Nioa said such models had one of the longest reloading times.

Mr Nioa, son-in-law of federal MP Bob Katter, has previously noted that lever action shotguns have been available in Australia for more than a century.