There can be no restrictions on any person's right to buy or sell any guns or any number of guns they choose.
This could present risks to society in America but the risks need to be accepted as necessary for the upholding of the intent of the 2nd. amendment. If any American objects to the sacred rights as stated by the 2nd. amendment then they have the option of purchasing their own weapons with which to defend themselves from harm.
The extreme example: A person released from prison who has murdered with his gun has the right to walk straight across the street from the prison and purchase a gun or guns. The only thing stopping him would be a background check being required to purchase a gun.
On the surface it could seem to be counter-productive to a peaceful society. It might be but there is no legitimate means to stop him unless the 2nd. amendment's unconditional rights are infringed upon.
And so for those who are hesitant to accept the full and complete rights as spelled out by their 2nd. amendment, is there any possible law that could be enacted that could curtail the ex-criminal's rights?
I say there is none! The 2nd. amendment isn't open for compromise for any reason or for any socialist cause.
Opinions?
The Right to Bear Arms (i.e. the 2nd Amendment) was seen by our Founding Fathers as the last check against tyranny. They knew that the best line of defense against a standing army was an armed populace.
"If the representatives of the people betray their constituents, there is then no resource left but in the exertion of that original right of self-defense which is paramount to all positive forms of government, and which against the usurpations of the national rulers, may be exerted with infinitely better prospect of success than against those of the rulers of an individual state. In a single state, if the persons intrusted with supreme power become usurpers, the different parcels, subdivisions, or districts of which it consists, having no distinct government in each, can take no regular measures for defense. The citizens must rush tumultuously to arms, without concert, without system, without resource; except in their courage and despair."
- Alexander Hamilton, Federalist No. 28
"If circumstances should at any time oblige the government to form an army of any magnitude that army can never be formidable to the liberties of the people while there is a large body of citizens, little, if at all, inferior to them in discipline and the use of arms, who stand ready to defend their own rights and those of their fellow-citizens. This appears to me the only substitute that can be devised for a standing army, and the best possible security against it, if it should exist."
- Alexander Hamilton, Federalist No. 28
The people who wish to preserve liberty and are capable of bearing arms are the militia.
“A militia when properly formed are in fact the people themselves…and include, according to the past and general usuage of the states, all men capable of bearing arms… "To preserve liberty, it is essential that the whole body of the people always possess arms, and be taught alike, especially when young, how to use them."
- Richard Henry Lee, Federal Farmer No. 18, January 25, 1788
The Founding Fathers believed that peaceable law abiding citizens should never have their right to bear arms be infringed upon.
"And that the said Constitution be never construed to authorize Congress to infringe the just liberty of the Press, or the rights of Conscience; or to prevent the people of the United States, WHO ARE PEACEABLE CITIZENS, from keeping their own arms; …"
Samuel Adams quoted in the Philadelphia Independent Gazetteer, August 20, 1789, "Propositions submitted to the Convention of this State"
The fundamental purpose of the militia is to serve as a check upon a standing army, the words “well regulated” referred to the necessity that the armed citizens making up the militia have the level of equipment and training necessary to be an effective and formidable check upon the national government’s standing army.
"I ask who are the militia? They consist now of the whole people, except a few public officers." - George Mason, Address to the Virginia Ratifying Convention, June 4, 1788
"Before a standing army can rule, the people must be disarmed, as they are in almost every country in Europe. The supreme power in America cannot enforce unjust laws by the sword; because the whole body of the people are armed, and constitute a force superior to any band of regular troops." - Noah Webster, An Examination of the Leading Principles of the Federal Constitution, October 10, 1787
"The right of the people to keep and bear arms shall not be infringed. A well regulated militia, composed of the body of the people, trained to arms, is the best and most natural defense of a free country." - James Madison, I Annals of Congress 434, June 8, 1789
“A militia when properly formed are in fact the people themselves…and include, according to the past and general usuage of the states, all men capable of bearing arms… "To preserve liberty, it is essential that the whole body of the people always possess arms, and be taught alike, especially when young, how to use them." - Richard Henry Lee, Federal Farmer No. 18, January 25, 1788
Well regulated does not mean regulations. When the Constitution specifies regulations it specifically states who and what is being regulated. The phrase "well-regulated" was in common use long before 1789, and remained so for a century thereafter. It referred to the property of something being in proper working order. Something that was well-regulated was calibrated correctly, functioning as expected. The fundamental purpose of the militia was to serve as a check upon a standing army, the words “well regulated” referred to the necessity that the armed citizens making up the militia have the necessary equipment and training necessary to be an effective and formidable check upon the national government’s standing army. Establishing government oversight of the people's arms was not only not the intent in using the phrase in the 2nd amendment, it was precisely to render the government powerless to do so that the founders wrote it.