Gun attachments which increase the firing speed of rifles, like those used in the Las Vegas massacre, are set to be banned in Australia.
The federal government is outlawing the devices, and toughening rules for serial numbers on weapons shipped into Australia for better tracking.
Assistant Customs Minister Jason Wood will put an import ban in place, while also demanding states and territories ban the attachments.
Bump stocks increase the firing speed of semi-automatic rifles and were used by Stephen Paddock when he killed 58 people in Las Vegas in 2017.
"Recent history, such as the tragic 2017 mass shooting in Las Vegas, has shown the devastating effect bump stocks can have," Mr Wood said in a statement on Sunday.
"It is my hope that these sensible restrictions will come into force early next year."
They are banned in Queensland and South Australia, but haven't been made illegal in other states and territories including NSW.
Under the new rules, there will be penalties of up to 10 years in jail and fines of $525,000 for anyone caught importing the devices.
Serial numbers will be standardised on imported weapons and put in the same place on every gun.
"John Howard made sure Australia had the toughest gun laws and I have given the green light to make sure Australia continues to be vigilant and have strong regulations," Mr Wood told News Corp.
A bump stock effectively turns a semi-automatic firearm into a fully automatic weapon.
When the firearm is fired, the stock bumps back and forth against the shooter's shoulder, allowing a person to hold their finger stationary against the trigger, while the firearm continues to fire.
Australian Associated Press