Courts and bailiffs aren't allowed to remove the "tools of your trade" unless they have been procured by criminal means as far as I understand the law, customers property seized is still the property of the customer not a business asset. You need to check with the court that supposedly ordered the seizure of his assets, your gun will still be your property, if you have a serial number for it then there should be a record of it in the seized assets. You will have to apply to have it returned then the bailiffs will have to return it to you or pay you whatever they sold it for.
https://thesheriffsoffice.com/articl..._may_be_seized