I have a Trust and a 22 suppressor so I know the basics. However, I also have a friend who has a low end 3D printer. Over the weekend, I was pricing what it would take to get a suppressor for my Kimber 1911, and figured around a grand - $800 for the hardware, $200 for the stamp and threaded barrel, more or less. Then, I remembered the Defcad stuff I have, and the friend with the printer, who happens to be firearm friendly. We got into a discussion today over lunch, wondering how we could do this legally for everybody. What is necessary for the serial, maker and markings for a suppressor? I know that you can make one in your garage, after you get the stamp. But a plastic suppressor is going to be disposable, almost by definition, but not necessarily. But seeing as it will cost a couple bucks in raw material, and about 18-20 hours print time, I feel its worth exploring as opposed to plopping down $800 for a can and $200 for a barrel. I figure, since the plastic suppressor is practically disposable, it can be attached with a hose clamp instead of threads, saving money on the threaded barrel. I know that the tax stamp is required beforehand. And that it is tied to a unique item with a registered serial. But, in practice, what differentiates between two home-made NFA items? My friend would have to get a FFL, in order to manufacture, right? That seems like a long process .but then again, were both business school graduates, and if there is a market out there for this type of item a suppressor for 1/100 th the cost there is a business opportunity. I need some marginal legal advice here from a NFA Dealer, a FFL Dealer or maybe a lawyer. Or at least a direction in which to head. Or, at the very least, a lively discussion. Thanks .