Guelph Police Service are continuing their investigation into stolen property and the illegal use of a firearm.
Members of the Break Enter Auto Theft unit began the investigation earlier this month.
They executed a search warrant at a south-end commercial facility on Tuesday.
A number of stolen items were recovered including an Audi SUV, an enclosed trailer, bicycles and tools.
Police also seized a loaded semi-automatic rifle.
No arrests have been made but they say the investigation is ongoing.