A 70-year-old importer admits he supplied restricted weapons to southeast Queensland flea market stall holders - but says he did it because of a high demand for the products.

Officers seized 453 items from Import Pioneer Products in Hendra and an address at Outlook Drive in Esk on Wednesday.

Some of the weapons seized by police. Credit:Kristian Silva

The haul consisted of 46 batons, 221 flick knives, seven Tasers, 15 knuckledusters and 164 nunchakus.

The owner of the store, 70-year-old Clement Eady, and his son Craig Eady, 50, were charged with weapons offences.