Requirements to apply for a permit to use hunting guns in Spain:
• Notarized photocopy of valid passport
• Notarized photocopy of valid hunting license
• Translation of hunting license 
Translation Form.pdf
• Application form Application Form.pdf
• Letter of invitation from the institution/club where the hunting will take place
• Application fee: $50.00 (Money order made payable to “Consulate General of Spain)
• Prepaid self-addressed USPS Express or Priority Mail envelope.