Police seize cache of guns, bombs from property on Sydney's outskirts
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Police say a doomsday prepper who allegedly amassed dozens of guns and 250 kilograms of explosive material at his home on Sydney's outskirts put the community at risk of a "catastrophic event".
Simon Mitchell Clay, 42, was arrested during a raid of his Kurrajong property yesterday morning and charged with a range of weapons offences carrying significant jail time.
Police will allege officers seized a cache of weapons including 40 firearms, seven improvised bombs, silencers, stun guns, detonators, thousands of rounds of ammunition and up to 77 knives.
Detective Superintendent John Watson said police would allege Mr Clay "was manufacturing weapons himself at the property".
NSW Police had never made a seizure of "alarming items" of this magnitude before, Detective Superintendent Watson said.
"There is no doubt in our minds this matter posed a significant risk to this individual, his family but also the community at large," he said.
"The potential for a catastrophic event has been averted through the seizure and arrest of this particular person."
Police claim they seized chemicals and bomb-making literature during the raid of the rural property.
Mr Clay has been charged with six offences, including possessing more than three unregistered firearms including a prohibited pistol, manufacturing firearms without a licence and possessing or using a prohibited weapon.
He was refused bail and is expected to appear before Penrith Local Court on Thursday.
The ABC understands Mr Clay was a doomsday prepper, and police have confirmed he is not suspected of having links to terror or extremist groups.
The Drug and Firearms Squad began an investigation earlier this month after receiving a tip-off before identifying Mr Clay's property, Detective Superintendent Watson said.
"We acted on information and we knew we had to act swiftly," he said.
"Because at any time, when you're dealing with explosives, you want to make sure police seize them and get them out of hands of anyone who shouldn't be lawfully able to have access to them."
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