So what's an AR15 good for?

[jimmy the one]

9. low recoil makes it more accurate

Because of the light weight projectile and very high velocity {~3,000 fps} many states prohibit the 55 gr .223 round as a humane hunting round. The lightweight projectile and loss of ballistic energy past a few hundred yards..

It also has very low recoil compared with conventional rifles which generally give a 'rifle rise' causing shooter to have to reaim his rifle, due to heavier bullets. The ar15 has such little recoil a normal man can simply hold it steady in both hands & shoot quite accurately at his targets without fear of much recoil, as whatshisname did at newtown killing 20 kids.
That & the ar15 is capable of being converted to full automatic, which is why the thing has such potential it should be banned (tho very few gun owners would want to convert it to full auto since illegal, just that it could be done).