Two firearms dealers who ran a store in the Florida Keys have been sentenced to prison for illegally possessing a gun disguised as a walking cane.

Court documents show that 52-year-old Thomas Joseph Willi and 37-year-old Jarvis Nelson Osorio will each serve more than two years in prison. Their store on Big Pine Key, Outbreak Ordnance, was fined $500,000.

The sentences last week came after Willi and Osorio pleaded guilty to illegally receiving and possessing a .38-caliber gun that looks like a walking cane. Such concealable or particularly dangerous weapons are tightly controlled under the 1934 National Firearms Act.

The men were initially charged with illegal possession of other guns disguised as items such as pens and flashlights but pleaded guilty to a single count.