Handguns and semi automatic rifle should be banned with a few exceptions

I will clarify , I am not for banning all guns , just the bad ones , for example 2/3 of all violent homicides in the usa are committed with handguns and we cant ban all rifles nor should we,

A machine gun is a military weapon capable of fully automatic fire. That is, the weapon continues to fire until it runs out of ammunition, so long as the trigger is pulled down. In the United States and elsewhere around the world, these weapons are likely to only be found on a battlefield [source: Violence Policy Center].
A semi-automatic weapon, on the other hand, could be described as a civilian version of a military machine gun, one that is less capable of rapid fire. Although the firearm automatically reloads, a shooter must pull the trigger separately in order to fire another round. Semi-automatic weapons are typically pistols, rifles and shotguns, including the AK-47 and AR-15 rifles, the UZI submachine guns, and MAC-10 machine pistols. These firearms are often referred to as "assault weapons," based on their rapid-fire capability. Gun rights advocates have taken issue with the term, however, arguing that it only applies to fully automatic, "spray firing" weapons [source: Violence Policy Center].

That said, the gun industry’s traditional definition of an “assault rifle” is a weapon the military generally uses and has “select fire capabilities,” or the capability to switch between semi-automatic or a fully automatic mode. However, the civilian AR-15s do not have the select fire capabilities, only semi-automatic settings, so the firearms industry insists they are not an actual assault rifle or assault weapon.

"I think one of the things we don't want to do is try to create laws that won't stop these types of things from happening," Sanders said Monday. "I think if you look to Chicago where you had over 4,000 victims of gun-related crimes last year they have the strictest gun laws in the country. That certainly hasn't helped there."

Pointing to Chicago to suggest that gun laws don't work is not a new talking point — Trump claimed Chicago had "the toughest gun laws in the United States" in a 2016 presidential debate; his fellow Republican candidate Chris Christie likewise pointed to Chicago as a place with high crime despite tight gun laws.

"I think one of the things we don't want to do is try to create laws that won't stop these types of things from happening," Sanders said Monday. "I think if you look to Chicago where you had over 4,000 victims of gun-related crimes last year they have the strictest gun laws in the country. That certainly hasn't helped there."

Pointing to Chicago to suggest that gun laws don't work is not a new talking point — Trump claimed Chicago had "the toughest gun laws in the United States" in a 2016 presidential debate; his fellow Republican candidate Chris Christie likewise pointed to Chicago as a place with high crime despite tight gun laws.

The Second Amendment of the United States Constitution reads: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." Such language has created considerable debate regarding the Amendment's intended scope. On the one hand, some believe that the Amendment's phrase "the right of the people to keep and bear Arms" creates an individual constitutional right for citizens of the United States. Under this "individual right theory," the United States Constitution restricts legislative bodies from prohibiting firearm possession, or at the very least, the Amendment renders prohibitory and restrictive regulation presumptively unconstitutional. On the other hand, some scholars point to the prefatory language "a well regulated Militia" to argue that the Framers intended only to restrict Congress from legislating away a state's right to self-defense. Scholars have come to call this theory "the collective rights theory." A collective rights theory of the Second Amendment asserts that citizens do not have an individual right to possess guns and that local, state, and federal legislative bodies therefore possess the authority to regulate firearms without implicating a constitutional right.