Heller 1(F) (this is common knowledge) recognizes SCOTUS can regulate gun ownership and ban unusual and dangerous weapons, and that is what the article refers to.
https://en.wikipedia.org/wiki/District_of_Columbia_v._Heller
Supreme Court of the United States
Argued March 18, 2008
Decided June 26, 2008
Full case name
District of Columbia, et al. v. Dick Anthony Heller
Docket nos.
07-290
Citations
554 U.S. 570 (more)
128 S. Ct. 2783; 171 L. Ed. 2d 637; 2008 U.S. LEXIS 5268; 76 U.S.L.W. 4631; 21 Fla. L. Weekly Fed. S 497
Prior history
Provisions of the Firearms Control Regulations Act of 1975 infringe an individual's right to bear arms as protected by the Second Amendment. District Court for the District of Columbia reversed.
Procedural history
Writ of Certiorari to the U.S. Court of Appeals for the District of Columbia Circuit
Argument
Oral argument
Opinion Announcement
Opinion announcement
Holding
The Second Amendment guarantees an individual's right to possess a firearm unconnected with service in a militia, and to use that arm for traditionally lawful purposes, such as self-defense within the home. United States Court of Appeals for the District of Columbia Circuit affirmed.
Court membership
Chief Justice
John G. Roberts
Associate Justices
John P. Stevens · Antonin Scalia
Anthony Kennedy · David Souter
Clarence Thomas · Ruth Bader Ginsburg
Stephen Breyer · Samuel Alito
Case opinions
Majority
Scalia, joined by Roberts, Kennedy, Thomas, Alito
Dissent
Stevens, joined by Souter, Ginsburg, Breyer
Dissent
Breyer, joined by Stevens, Souter, Ginsburg
Laws applied
U.S. Const. amend. II; D.C. Code §§ 7-2502.02(a)(4), 22–4504, 7–2507.02