You guys are pulling information from web sites financially connected to the NRA and gun owner stores and you dont realize your getting twisted and corruptly biased facts
Ok jackass, here is one from the LA Times, not NRA but leftists propaganda rag. Better?
Little wonder then that a 2004 study commissioned by the Department of Justice found that the federal ban didn't lead to any decrease in gun crime or gun deaths. For starters, rifles, assault or otherwise, are rarely used in gun crime. Notwithstanding the two rifles used in San Bernardino (and a few other memorable mass killings), rifles account for only about 3% of criminal gun deaths. Gun crime in the United States, including most mass shootings, is overwhelmingly handgun crime.
There are approaches to gun control, such as universal background checks and cracking down on rogue gun dealers, that can reduce the daily death toll from guns. It may seem like a victory for the forces of good to ban assault weapons, but such laws aren't the answer. Assault weapon bans are bad policy and bad politics.