District of Columbia v. Heller said:
Justice Stevens places overwhelming reliance upon this Court's decision in Miller, 307 U.S. 174, 59 S. Ct. 816, 83 L. Ed. 1206, 1939-1 C.B. 373. "[H]undreds of judges," we are told, "have relied on the view of the Amendment we endorsed there," post, at 638, 171 L. Ed. 2d, at 685, and "[e]ven if the textual and historical arguments on both sides of the issue were evenly balanced, respect for the well-settled views of all of our predecessors on this Court, and for the rule of law itself . . . would prevent most jurists from endorsing such a dramatic upheaval in the law," post, at 639, 171 L. Ed. 2d, at 686. And what is, according to Justice Stevens, the holding of Miller that demands such obeisance? That the Second Amendment "protects the right to keep and bear arms for certain military purposes, but that it does not curtail the Legislature's power to regulate the nonmilitary use and ownership of weapons." Post, at 637, 171 L. Ed. 2d, at 685.
Nothing so clearly demonstrates the weakness of Justice Stevens' case. Miller did not hold that and cannot possibly be read to have held that. The judgment in the case upheld against a Second Amendment challenge two men's federal indictment for transporting an unregistered short-barreled shotgun in interstate commerce, in violation of the National Firearms Act, 48 Stat. 1236. It is entirely clear that the Court's basis for saying that the Second Amendment did not apply was not that the defendants were "bear[ing] arms" not "for . . . military purposes" but for "nonmilitary use," post, at 637, 171 L. Ed. 2d, at 685. Rather, it was that the type of weapon at issue was not eligible for Second Amendment protection: "In the absence of any evidence tending to show that the possession or use of a [short-barreled shotgun] at this time has some reasonable relationship to the preservation or efficiency of a well regulated militia, we cannot say that the Second Amendment guarantees the right to keep and bear such an instrument." 307 U.S., at 178, 59 S. Ct. 816, 83 L. Ed. 1206 (emphasis added). "Certainly," the Court continued, "it is not within judicial notice that this weapon is any part of the ordinary military equipment or that its use could contribute to the common defense." Ibid. Beyond that, the opinion provided no explanation of the content of the right.
This holding is not only consistent with, but positively suggests, that the Second Amendment confers an individual right to keep and bear arms (though only arms that "have some reasonable relationship to the preservation or efficiency of a well regulated militia"). Had the Court believed that the Second Amendment protects only those serving in the militia, it would have been odd to examine the character of the weapon rather than simply note that the two crooks were not militiamen. Justice Stevens can say again and again that Miller did not "turn on the difference between muskets and sawed-off shotguns; it turned, rather, on the basic difference between the military and nonmilitary use and possession of guns," post, at 677, 171 L. Ed. 2d, at 708, but the words of the opinion prove otherwise. The most Justice Stevens can plausibly claim for Miller is that it declined to decide the nature of the Second Amendment right, despite the Solicitor General's argument (made in the alternative) that the right was collective, see Brief for United States, O. T. 1938, [623] No. 696, pp 4-5. Miller stands only for the proposition that the Second Amendment right, whatever its nature, extends only to certain types of weapons.
It is particularly wrongheaded to read Miller for more than what it said, because the case did not even purport to be a thorough examination of the Second Amendment. Justice Stevens claims, post, at 676-677, 171 L. Ed. 2d, at 708, that the opinion reached its conclusion "[a]fter reviewing many of the same sources that are discussed at greater length by the Court today." Not many, which was not entirely the Court's fault. The defendants made no appearance in the case, neither filing a brief nor appearing at oral argument; the Court heard from no one but the Government (reason enough, one would think, not to make that case the beginning and the end of this Court's consideration of the Second Amendment). See Frye, The Peculiar Story of United States v. Miller, 3 N. Y. U. J. L. & Liberty 48, 65-68 (2008). The Government's brief spent two pages discussing English legal sources, concluding "that at least the carrying of weapons without lawful occasion or excuse was always a crime" and that (because of the class-based restrictions and the prohibition on terrorizing people with dangerous or unusual weapons) "the early English law did not guarantee an unrestricted right to bear arms." Brief for United States, O. T. 1938, No. 696, at 9-11. It then went on to rely primarily on the discussion of the English right to bear arms in Aymette v. State, 21 Tenn. 154, for the proposition that the only uses of arms protected by the Second Amendment are those that relate to the militia, not self-defense. See Brief for United States, O. T. 1938, No. 696, at 12-18. The final section of the brief recognized that "some courts have said that the right to bear arms includes the right of the individual to have them for the protection of his person and property," and launched an alternative argument that "weapons which are commonly used by criminals," such as sawed-off shotguns, are not protected. See id., at 18-21. The Government's Miller brief thus provided scant discussion of the history of the Second Amendment--and the Court was presented with no counterdiscussion. As for the text of the Court's opinion itself, that discusses none of the history of the Second Amendment. It assumes from the prologue that the Amendment was designed to preserve the militia, 307 U.S., at 178, 59 S. Ct. 816, 83 L. Ed. 1206 (which we do not dispute), and then reviews some historical materials dealing with the nature of the militia, and in particular with the nature of the arms their members were expected to possess, id., at 178-182, 59 S. Ct. 816, 83 L. Ed. 1206. Not a word (not a word) about the history of the Second Amendment. This is the mighty rock upon which the dissent rests its case.
We may as well consider at this point (for we will have to consider eventually) what types of weapons Miller permits. Read in isolation, Miller's phrase "part of ordinary military equipment" could mean that only those weapons useful in warfare are protected. That would be a startling reading of the opinion, since it would mean that the National Firearms Act's restrictions on machineguns (not challenged in Miller) might be unconstitutional, machineguns being useful in warfare in 1939. We think that Miller's "ordinary military equipment" language must be read in tandem with what comes after: "[O]rdinarily when called for [militia] service [able-bodied] men were expected to appear bearing arms supplied by themselves and of the kind in common use at the time." 307 U.S., at 179, 59 S. Ct. 816, 83 L. Ed. 1206. The traditional militia was formed from a pool of men bringing arms "in common use at the time" for lawful purposes like self-defense. "In the colonial and revolutionary war era, [small-arms] weapons used by militiamen and weapons used in defense of person and home were one and the same." State v. Kessler, 289 Ore. 359, 368, 614 P.2d 94, 98 (1980) (citing G. Neumann, Swords and Blades of the American Revolution 6-15, 252-254 (1973)). Indeed, that is precisely the way in which the Second Amendment's operative clause furthers the purpose announced in its preface. We therefore read Miller to say only that the Second Amendment does not protect those weapons not typically possessed by law-abiding citizens for lawful purposes, such as short-barreled shotguns. That accords with the historical understanding of the scope of the right, see Part III.