Originally Posted by redzaku
but can it fit on a real gun i wonder?
Non-issue. Most airsoft related importing problems are related to the interpretations of the CSBA, that airsoft guns and related gear can fall into the category of weapon replicas.
The are ways clear exeptions (replicas of pre-1898 manufactured guns usually are ok), but most of the guns in the airsoft world will have importation issues under the current laws and their interpretation.
Long story short, don't worry if it doesn't all make sense, it doesn't.