Quote Originally Posted by RandomTask View Post
As I understand, if it is being made for your own consumption, no serial # is necessary. DYODD, YMMV
That's how I understand it as well, I was just curious if most people left them blank or not. There would definitely be a cool factor to having an AR-15 with no serial number.

The only issue I can think of is if it got stolen, you would probably never get it back. How could you prove it was yours?