The Upper House of Parliament, the Council of States, has taken the first step of loosening the laws restricting the re-sale of Swiss-made arms and munitions.
Currently, customers of Swiss weapons are unable to sell or donate the equipment to other countries that are engaged in conflict, which has become a major problem for those states that wish to assist Ukraine.
Many countries have pledged to stop buying from Switzerland.
But the house voted to permit requests from 25 countries to allow re-export.
It is mainly European countries, as well as the US, Canada, Australia, Japan, New Zealand, and Argentina.
Supporters say the Swiss arms industry needs the business to make domestic production profitable. Without it, they say, Switzerland will have less effective weaponry available for itself.
The Lower House still needs to vote, where there could be stronger opposition.
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