The 2nd Amendment very clearly protects militia arms (that is, individual weapons) as laid out in the Militia Act of 1792 that specified EXACTLY what a militia member should provide for himself - that is, a standard caliber modern military rifle with sufficient ammunition. The modern day equivalent is the M16 and a load of 180 rounds in magazines. Therefore, it is indisputable that the 2nd protects all standard issue individual weapons of the US armed forces, and not howitzers, tanks, or atomic weapons.
I hereby declare this line of specious anti reasoning dead, and will refer to this thread when disproving weak arguments of the form:
("Well, I'll just go out and buy a nuke for my garage! The 2nd protects my right to have a nuke, right? Who are you to say that the 2nd doesn't protect nukes? It's not written down anywhere! Ha ha!")
Ah, but you are wrong. It is written down very clearly what arms are protected under the 2nd:
http://www.constitution.org/mil/mil_act_1792.htmI. Be it enacted by the Senate and House of Representatives of the United States of America, in Congress assembled, That each and every free able-bodied white male citizen of the respective States, resident therein, who is or shall be of age of eighteen years, and under the age of forty-five years (except as is herein after excepted) shall severally and respectively be enrolled in the militia, by the Captain or Commanding Officer of the company, within whose bounds such citizen shall reside, and that within twelve months after the passing of this Act. And it shall at all time hereafter be the duty of every such Captain or Commanding Officer of a company, to enroll every such citizen as aforesaid, and also those who shall, from time to time, arrive at the age of 18 years, or being at the age of 18 years, and under the age of 45 years (except as before excepted) shall come to reside within his bounds; and shall without delay notify such citizen of the said enrollment, by the proper non-commissioned Officer of the company, by whom such notice may be proved. That every citizen, so enrolled and notified, shall, within six months thereafter,
provide himself with a good musket or firelock, a sufficient bayonet and belt, two spare flints, and a knapsack, a pouch, with a box therein, to contain not less than twenty four cartridges, suited to the bore of his musket or firelock, each cartridge to contain a proper quantity of power and ball; or with a good rifle, knapsack, shot-pouch, and power-horn, twenty balls suited to the bore of his rifle, and a quarter of a power of power; and shall appear so armed, accoutred and provided, when called out to exercise or into service, except, that when called out on company days to exercise only, he may appear without a knapsack. That the commissioned Officers shall severally be armed with a sword or hanger, and espontoon; and that from and after five years from the passing of this Act, all muskets from arming the militia as is herein required, shall be of bores sufficient for balls of the eighteenth part of a pound; and every citizen so enrolled, and providing himself with the arms, ammunition and accoutrements, required as aforesaid, shall hold the same exempted from all suits, distresses, executions or sales, for debt or for the payment of taxes.
"But but but no one came to my house and told me I'm in the militia! So there!"
Sigh. You're already enrolled in the militia by law if you're a male 17-45 and not already in the armed forces according to USC 10.311:
http://www.law.cornell.edu/uscode/10/311.html § 311. Militia: composition and classes (a) The militia of the United States consists of all able-bodied males at least 17 years of age and, except as provided in section 313 of title 32, under 45 years of age who are, or who have made a declaration of intention to become, citizens of the United States and of female citizens of the United States who are members of the National Guard. (b) The classes of the militia are— (1) the organized militia, which consists of the National Guard and the Naval Militia; and (2)
the unorganized militia, which consists of the members of the militia who are not members of the National Guard or the Naval Militia.Therefore, the 2nd Amendment protects the right for free citizens (felons excluded as they are not free even after being released from jail) to own individual weapons suitable for militia service. This means all weapons identical or similar to the current Army issue to the individual soldier:
M16 rifle
M249 machinegun
M240 machinegun
M60 machinegun
M203 grenade launcher
LAW antitank weapon
AT4 recoilless rifle
M9 pistol
M40 sniper rifle
M1014 sem-auto shotgun
The government may provide at its discretion the following weapons and enact strict licensing and control of them, because they are not weapons issued to individual soldiers:
M2 heavy machinegun
M119A1 105mm howitzer
M110 personnel carrier with 20mm cannon
M1A1 main battle tank with smoothbore 120mm main gun
W88 475kT nuclear warhead
FIM-92A anti-aircraft missile (though it can be operated by one man, it is issued to a 2 person team. Hence, not a militia weapon.)
Additionally, the ownership of the following civilian arms is not explicitly protected (but not forbidden), as they are not similar to issue weapons:
AR-15 semiauto rifle
SSR-85C semiautomatic AK-47 copy
Most hunting rifles
All revolvers
Most shotguns