No , hell you could mail order them back in the day. They still aren't " banned " you can get them but they are so cost prohibitive that most can't afford them. a NFA full auto M16 will cost you about $20K a semi-automatic AR15 can be had for about $600
From google:
"Machine guns are not illegal, but it is illegal to make and register new ones on a form 1 (as you would do for an SBR) There is no way around the May 19th, 1986 date. If the machine gun in question was made after that date, you may not own it (unless you are a dealer)May 21, 2014."
Can you explain what this means, especially the part where it says, "you may not own it (unless you are a dealer)." But isnt the point of being a dealer is to sell?