I received a letter today from UK Border Force stating that it had been seized as a 'Realistic Imitation Firearm'
Reason being 'The item was not described accurately by the sender on a written declaration accompanying the parcel.
As I had one of these sent in the past with no problems (the sender put a photo of Challenger machine pointing out the pistol), I contacted seller to see if he had done the same, no reply so I can assume hid did not.
If I want to appeal the Border Force decision, I will have to go to the Magistrates Court, which will cost me more money. They also said my chances of winning is very low.
The moral of this story is, ask the seller to enclose the proper documentation if only a photo of item in situ.
The good news is I received a full refund from eBay, the bad news I would have preferred the item.