It will probably be seized. If the customs guys recognize it. Its a chance you'd take I have briught back depth charges, 100lb practise bombs etc and had no problems mostly because they didn't ask about it only booze and cigarettes. I saw an article recently where one was taken by police in the states and declared a WMD. and the collector charged. but thats ATF rules here in Canada its called a NON GUN therfore no problem. But its the border guys that would hold it up.
cheers
Adam
