Some online booking procedures aren't so clear when it comes to registering/paying for air rifles. Norwegian have an item on their menu called "pay for special bagge" under customer services. Here's a contact number United Kingdom 0208 099 7254 Monday-Friday: 08:30-17:00 and Saturday-Sunday: 08:30-16:00
... oh yeah..and the international fee for arms is per route is 200 kroner (approx £20+/-) ... Hope this helps, - Happy new year to all ! A
You need two things in life - WD40 & duct tape. If it moves and it shouldn't, use the duct tape. If it should and it don't, use the WD40.