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.
People often debate the meaning of the 2nd Amendment no matter how plain and clear its wording. Furthermore, the meaning and the intention of the 2nd Amendment is supported by numerous writings of the architects of it:
"No freeman shall be debarred the use of arms..." - Thomas Jefferson
"I ask sir, who is the militia? It is the whole people...To disarm the people, that is the best and most effective way to enslave them..." - George Mason
"Americans [have] the right and advantage of being armed -- unlike citizens of other countries whose governments are afraid to trust people with arms." - James Madison
"...Arms like laws discourage and keep the invader and the plunderer in awe, and preserve order in the world as well as property. The balance of power is the scale of peace." -Thomas Paine
"Before a standing army can rule, the people must be disarmed; as they are in almost every kingdom in Europe. The supreme power in America cannot enforce unjust laws by the sword because the whole body of people are armed and constitute a force superior to any band of regular troops that can be, on any pretense, raised in the United States..." - Noah Webster
"Arms in the hands of individual citizens may be used at individual discretion...in private self defense." - John Adams
"The great principle is that every man be armed....everyone who is able may have a gun." - Patrick Henry
"Those who reap the blessings of freedom must, like men, undergo the fatigue of supporting it." - Thomas Paine
"...What country can preserve its liberties, if its rulers are not warned from time to time, that this people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify is a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. It is its natural manure...." - Thomas Jefferson: Letter to Colonel Smith, Nov. 13, 1787.