The Commonwealth of the Northern Mariana Islands is part of U.S. sovereign territory. It also (1) totally bans handguns, (2) bans carrying all guns, even in the home, (3) requires licenses for long guns, which are allegedly not granted for months on end, though theoretically they are supposed to be granted within 60 days, and (4) bans all ammunition except .22 cartridges, .223 cartridges, and .410 shotgun shells. Radich v. Guerrero (D.N.M.I. Sept. 5, 2014) argues this violates the Second Amendment, and surely that must be so; and before you go all Insular Cases on me, note that § 501 of the CNMI Covenant expressly provides (emphasis added),

To the extent that they are not applicable of their own force, the following provisions of the Constitution of the United States will be applicable within the Northern Mariana Islands as if the Northern Mariana Islands were one of the several States: Article I, Section 9, Clauses 2, 3, and 8; Article I, Section 10, Clauses 1 and 3; Article IV, Section 1 and Section 2, Clauses 1 and 2; Amendments 1 through 9, inclusive; Amendment 13; Amendment 14, Section 1; Amendment 15; Amendment 19; and Amendment 26; provided, however, that neither trial by jury nor indictment by grand jury shall be required in any civil action or criminal prosecution based on local law, except where required by local law.

This also explains how I learned about latte stones.