South Australia recently updated its Firearms Regulations 2017 legislation to ensure all gel blasters are registered with the state's police.
Gel blasters are toy guns that are similar to airsoft rifles and shoot 'a super-absorbent polymer as bullets'.
However, enthusiasts say they have to also register some types of Nerf guns because they operate in similar fashion to gel blasters without any modifications.
As a result, they are treated like a proper firearm if they're used to fire the gel bullets.
Brad Phillips has registered his $35 Nerf Mega Big Shock and reckons the laws are pretty outrageous.
"It's only if you load it with a gel ball then you'll be breaking the law," Mr Phillips told 7News.
The new law officially kicked into gear in October last year, however there was a six month amnesty to give gel blaster owners time to either hand over their weapon or get a firearm license.
The blasters, which can sometimes resemble assault rifles, are only allowed in licensed venues like paintball and skirmish facilities.
The state was forced to act after more than 180 incidents involving gel blasters occurred in just two years.
Superintendent Stephen Howard said back in October that it was a common sense move to catalogue the ownership of these devices.
"Not only do they fire a projectile, but they also look like a firearm of a different category or class," Superintendent Howard said.
"People were committing crimes or doing stupid things with them...we shouldn't wait for someone to be either killed or seriously injured due to an incident involving gel blasters.
"A lot of people say these are toys, but they're not toys. These don't meet the definition.
"You could threaten someone with a gel blaster, and the person would either be concerned, 'Am I going to get shot by a gel blaster or am I going to get shot by a real firearm?'"
But they probably weren't expecting Nerf guns to be roped into the gel blaster debate.
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