Originally Posted By: bronco2do you have to summit a form 1 for ever suppressor you build
I think you are a long way away from building your own suppressor.
Not to sound mean, but if your read the Form 1, and have a basic understanding of life, you would know that a serial number is a unique identifying marking for an item. 2 items can not have the same serial number.
There are many websites and message boards devoted to Form 1's that answer these questions. You really need to do some more research.