Is the weapon of a deceased person part of the inheritance or not?

If the deceased lawfully owned the weapon during his lifetime, it belongs to his heirs like all his other possessions, based on the Almighty's saying: "For men is a share of what the parents and close relatives leave, and for women is a share of what the parents and close relatives leave, be it little or much – a legal share." However, if the ownership was unlawful, then it does not become his property and is not permissible for his heirs; it must be returned to the relevant authorities in the state.