All day you have ridiculed peopl who believe that you and other liberals want to take away guns. (see cartoon) You advocate banning AR15s then you snicker at people who claim that liberals want to ban AR15s. Not sure what point you are trying to make.
The study to which you linked has this nugget:
Australia's 1996
National Firearms Agreement (which outright confiscated 650,000 guns, in addition to imposing background checks and licensing rules) is perhaps the best-studied of any of the international laws. Santaella-Tenorio et al. reviewed
eight studies on it, most of which found clear and strong evidence of a reduction in firearm deaths after the law's passage.
Our fears of gun confiscation are very real. Obama and other Dems have hinted that they wish to go this route. Belittling those that disagree with you without offering convincing counter arguments leads nowhere.