In New York State Rifle & Pistol Association, Inc. v. Bruen, 597 U.S, ____ S.Ct. (2022) at page 8 the Court reiterated “[T]he government must demonstrate that the regulation is consistent with this Nation’s historical tradition of firearm regulation. Only if a firearm regulation is consistent with this Nation’s historical tradition may a court conclude that the individual’s conduct falls outside the Second Amendment’s “unqualified command.”’ In other words, District of Columbia v. Heller, 554 U. S. 570, and McDonald v. Chicago, 561 U. S. 742 held that the Second and Fourteenth Amendments protect an individual right to keep and bear arms for self-defense. Under Heller, when the Second Amendment’s plain text covers an individual’s conduct, the Constitution presumptively protects that conduct, and to justify a firearm regulation the government must demonstrate that the regulation is consistent with the Nation’s historical tradition of firearm regulation.
Where in history has magazine capacity ever been regulated? Never.