sending parts to Germany

[Ray]

I have 3 breechblocks and 3 luger barrels that I would like
to send to a friend in Germany. I am not familiar with what
restrictions apply here in the USA about exporting these parts.
I understand from my friend in Germany that a permit is
required to receive such parts in his country. Simpson has
an export business, but I think that the cost to send these
parts would be more than the cost of the items. Any suggestions
of a less expensive approach?

Ray