However, it should also be noted that gun enthusiasts are also generally misinterpreting the word "infringe". The phrase "shall not be infringed" does not mean "cannot be limited". The word "infringe" means "to actively break the terms of (a law, agreement, etc.)." Clearly, the intention was for people to be able to own and possess firearms within reason, not necessarily without restriction. If that were the intention, it is reasonable to assume that the writers would have chosen a word that actually contained that denotative meaning ("abridged", for instance, or "curtailed").
Laws requiring background checks, limiting the quantity of firearms owned by an individual, limiting magazine size, et al, do not necessarily "infringe" upon the natural right of the people for self-defense.