Adam Harris, 54, of St Leonards and St Ives, was sentenced at Bournemouth Crown Court to five years and three months in prison on Monday, January 6 after pleading guilty to multiple charges of possessing firearms without a licence.
He was arrested on January 10, 2021 in Cumbria after police received information.
Officers conducted a thorough search of storage containers controlled by the defendant on land at Throop Mill in Bournemouth under section 18 of the Police and Criminal Evidence Act 1984.
They seized several firearms including a Smith & Weston 44 Magnum revolver, two Glock pistols and a Beretta Tomcat-32 pistol.
Six rifles were assembled from disassembled parts including a Winchester Savage bolt-action rifle, a Remington Ruger semi-automatic rifle, a Ruger Long semi-automatic rifle and a Nagant bolt-action rifle.
A crossbow, a Cobra stun gun, further disassembled gun parts and multiple rounds of ammunition were also found.
Harris was charged following forensic examination of the items. The weapons and ammunition seized will be forfeited.
Detective constable Steven Davis, of BCP CID, said: “We take all incidents involving firearms and prohibited weapons extremely seriously in our continued efforts to keep the people of Dorset safe.
“Thanks to partnership working with Cumbria Police and the detailed investigation conducted by our officers, we were able to arrest and charge Harris as well as find and confiscate a large haul of highly dangerous firearms, weapons and ammunition.
“I would urge anyone with information about individuals who are believed to be in possession of prohibited weapons to please do the right thing and report it to us so we can take robust action against those involved and keep the public safe.”