I have a very good friend and buyer from Australia. I have sent him tons of items from Spain with Spanish Post and always received all without problems. I always shipped Airmail Registered without state contents nor value, (I havent to do it), and with the items, grenades, rifle grenades, etc, dismounted and shipped in different parcels. All the items sent havent the shape of a "standard" grenade, you know, so I never sent him an US MKII or a F1. It is a shame for the Aussie collectors to have this stupid laws in the post. So, you have to talk with Private Couriers like UPS, (very expensive), FeDex, DHL... Im working with GLS for ship items from an East country to me, this country is very hard with its customs laws for ship ordnance, but with this courier I received all what I bought there, without restrictions.