IMPORTANT ANNOUNCEMENT UK NATIONALS.
Specifically in this matter, Brexit will affect prior authorizations and consents for intra-community transfers of weapons, explosives, pyrotechnic articles and ammunition, which have been issued prior to the date of withdrawal of the United Kingdom from the European Union. These will be valid until the expiration date of the period established in the aforementioned documents.
As of the withdrawal date, these prior authorizations and consents for intra-community transfers will cease to be issued and the general regime for the import, transit and export of goods will apply. This will be conditional on the adoption with the competent British authorities of reciprocal agreements.
SPEAK TO THE FIREARMS SECTION OF THE GUARDIA CIVIL.
The application must be made at your nearest Guardia Civil department of ‘Intervencion de Armas’. There are various requisites of which there is a list below. Note that it is not permissible to hold arms in Spain without a licence
Most application are made at the particular station of the Guardia Civil. Some town halls may facilitate the service.
You must also register with a hunting federation in Spain and hold a ‘Tarjeta Federativa’. The federation will be able to provide you with the insurance needed.
Documents:
Residencia
Padron
Copy of old licence?
Tarjeta Federative
Medical certificate
Tasa Modelo 790
Justification of payment of the 790 at bank.
Airguns, if they meet the requisites as outlined in the link below, need a licence to hold and to use.