I realize i will most likely get a troll or two by asking this question but if i wanted to shorten a barrel to under 18.5" and assuming i could get a gunsmith to do it, what are the step that follow... it becomes a restricted firearm which i have no problem with. but do I or does the gunsmith contact the CFO to change the status of the rifle? Does it have to be inspected? I'm interested in the process.