Really? What bill is that? Why don't you tell us all the horribles in the bill? How was it passed? Who supported and opposed it? It's incredible the amount of nonsense people write about 1986.
I assume he is talking about the 1986 Firearms Owners Protection Act.
I won't pretend to know all of the ins and outs, but this website has more information: Prevent Tyranny - Right to Bear Arms - 1986 - Firearm Owners Protection Act
After listing 12 positives for gun owners, it lists a few negatives.
There were additional changes that were seen as a “negative” by gun rights activists:
Prohibits civilians from possessing full-auto firearms manufactured after May 19, 1986.
Redefines 'machine gun' to include those sets of parts or parts that could be used to convert a semiautomatic firearm into a machine gun.