If a gun holds 10 rounds in the magazine it's okay. If it holds 11 or more then it's a dangerous assault weapon.
If a gun holds 10 rounds, but has a bayonet lug it's very dangerous. Remove the bayonet and it's safe. After all, look at all the crimes being committed with bayonets. I feel much safer knowing that the person standing next to me in the grocery store can't attach a bayonet to the AK-47 he's holding.
We also need to do something about those 50 Caliber BMGs. Although no crime has ever been committed with one (it weighs over 20 lbs, and costs over $2000), it could be used to shoot down airplanes and satellites and stuff. (I have my theory about the Columbia, too but that will have to wait until another thread.)
We also need to get rid of those new 500 S&Ws, too. I hear that the recoil is so bad on them that if three people all pointed them in the air and fired at the same time it might send the planet out of its orbit and into the sun. (I'll post my "Does cowboy action shooting cause global warming?" theory later.)
We have to ban affordable guns because they'll be used by poor people. We have to get rid of small guns because they're too easy to conceal. We have to get rid of the big guns because they're too dangerous. We have to get rid of expensive guns because they aren't suitable for duck hunting. </ Sarcasm>