Short and sweet.
Note the linkage between the militia duty and arms
In the second article, it is declared, that a well regulated militia is necessary to the security of a free state; a proposition from which few will dissent. Although in actual war, the services of regular troops are confessedly more valuable; yet, while peace prevails, and in the commencement of a war before a regular force can be raised, the militia form the palladium of the country. They are ready to repel invasion, to suppress insurrection, and preserve the good order and peace of government. That they should be well regulated, is judiciously added. A disorderly militia is disgraceful to itself, and dangerous not to the enemy, but to its own country. The duty of the state government is, to adopt such regulations as will tend to make good soldiers with the least interruptions of the ordinary and useful occupations of civil life. In this all the Union has a strong and visible interest.
The corollary, from the first position, is, that the right of the people to keep and bear arms shall not be infringed.
The prohibition is general. No clause in the Constitution (e.g., Article I, Section 8, Clause 16) could by any rule of construction be conceived to give to congress a power to disarm the people. Such a flagitious attempt could only be made under some general pretence by a state legislature. But if in any blind pursuit of inordinate power, either should attempt it, this amendment may be appealed to as a restraint on both.
In most of the countries of Europe, this right does not seem to be denied, although it is allowed more or less sparingly, according to circumstances. In England, a country which boasts so much of its freedom, the right was secured to protestant subjects only, on the revolution of 1688; and it is cautiously described to be that of bearing arms for their defence, "suitable to their conditions, and as allowed by law." An arbitrary code for the preservation of game in that country has long disgraced them. A very small proportion of the people being permitted to kill it, though for their own subsistence; a gun or other instrument, used for that purpose by an unqualified person, may be seized and forfeited. Blackstone, in whom we regret that we cannot always trace the expanded principles of rational liberty, observes however, on this subject, that the prevention of popular insurrections and resistance to government by disarming the people, is oftener meant than avowed, by the makers of forest and game laws.
This right ought not, however, in any government, to be abused to the disturbance of the public peace.
An assemblage of persons with arms, for an unlawful purpose, is an indictable offence, and even the carrying of arms abroad by a single individual, attended with circumstances giving just reason to fear that he purposes to make an unlawful use of them, would be sufficient cause to require him to give surety of the peace. If he refused he would be liable to imprisonment.