WA Police have seized more than 100 firearms linked to the kidnapping of an elderly man and the robbery of a gun store in Perth last week.

Key points: About 70 handguns and 30 long arm rifles were found by police in a storage shed

About 70 handguns and 30 long arm rifles were found by police in a storage shed One man has been charged and a second suspect is believed to have fled overseas

One man has been charged and a second suspect is believed to have fled overseas Police say there is "no doubt these guns were destined for organised crime"

Specialist officers including the Tactical Response Group raided properties across the city yesterday, including in Cloverdale, Wilson, Malaga and Midland, and found the cache of weapons in a storage shed in Forrestdale.

A 23-year-old man is in custody while police believe another alleged offender has fled the country, with inquiries into his whereabouts continuing.

The cache of guns, including about 30 long arm rifles, were found in a storage shed. ( Supplied: WA Police )

Police are trying to establish whether a broader criminal syndicate was involved.

The haul of firearms was seized as part of an investigation into the kidnapping of Barry Lathwell, 81, at the gun shop in Beckenham last week.

He was on his way home from Barry & Sons Firearms on Wednesday night when he was set upon by two men, who subsequently ransacked his store.

The robbers were captured on the store's CCTV system. ( Supplied: WA Police )

Deputy Commissioner Col Blanch said officers had been working around the clock to locate the firearms.

"This is not something we tolerate in WA," he said.

"These types of crimes are very rare for Western Australia and the WA Police threw everything it had at it.

"Every operational person we had available worked 24/7 since last Wednesday to solve this crime.

"And it's important that we take these guns off the street because there is no doubt these guns were destined for organised crime."

Man charged after second suspect flew to Doha

There were about 70 handguns and 30 long arm rifles in the mix, which Deputy Commissioner Blanch said could cause a lot of damage to the community.

Police held a media conference to show off some of the firearms. ( ABC News: Ben Gubana )

A 23-year-old man from Seville Grove has been charged with multiple offences including deprivation of liberty and aggravated burglary, and is due to appear in court tomorrow.

Police believe his counterpart, a man of a similar age, flew out of Perth on Sunday.

"We don't know exactly what country he is in at the moment, he took a flight that stopped in Doha," Deputy Commissioner Blanch said.

"I'm assuming he's gone on further than that. We are actively seeking his whereabouts."

'Number one priority' for police: Minister

The firearms will undergo forensic analysis before being handed back to the store.

Police are investigating whether a broader criminal syndicate was involved in the theft. ( ABC News: Ben Gubana )

Police Minister Michelle Roberts said she was pleased with the hard work of officers.

"Since the moment that these guns were stolen, this has been the number one priority for West Australia Police," she said.

"You can only imagine the crimes that could occur with these guns."

Investigations into the robbery and kidnapping are continuing.