The right to keep and bear arms, who has it?

Although we are given the right to own and carry guns through the constitution, guns cause more violence than they do good, even though they can be used as a form a self defense. In the constitution it is the "right of the people to keep and bear Arms," but what does that mean exactly? Is anyone allowed to carry a gun and if only certain people can who can't? Secondly, what does arms mean exactly? Are people allowed to own and carry any kind of gun imaginable? These are the kinds of questions that are should be considered and are the ones that are being asked.
In the wording of the constitution, it is worded in a way that means all people have the right, did the founding fathers intend on giving this privilege to violent criminals and the mentally unstable? No, the second amendment was written for the common man. So I believe that people should have the right to bear arms, except for the mentally unstable or anyone who has committed a violent felony.
What type of guns should be available to the common man to own? Order to answer that question we need to ask a second question which is, what is the purpose of owning a gun? There are simply three answers: for recreational purposes, like a shooting ranges; for self defense, and for hunting. For each of these things, automatic and semi-automatic are not necessary. Automatic guns are made to kill efficiently, not to protect. Because of this, people should not be able to own automatic or semiautomatic guns, but rather guns like a pistol or hunting rifle.