Police are investigating following a break in at the Stanwell Tops Skirmish Centre.
140 paintball guns have been stolen, as well as 120 1kg gas canisters, 15 boxes of paintball ammunition, six hand held radios and 11 helmets.
The business has been closed since January 16 and the theft only discovered when owner Terry Marousis returned from holidays over the weekend.
The equipment has been taken from a remote storage facility in what’s thought to be a well-organised robbery involving a team of men.
Power was cut before the thieves used crow bars to break through several layers of steel casing.
Paintball guns are registered firearms and the storage facility is regularly inspected by State Firearm Authorities.