Shall not be infringed- 4 declarative words- no interpretation required.
"A well regulated Militia***, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed"
***Framed here: "The Congress shall have the power to ..." Art. I, Sec 8, clause 15 & 16
Clause 15: "
To provide for calling forth the militia to execute the Laws of the Union, suppress insurrections and repeal invasions."
Clause 16: "
To provide for organizing, arming and disciplining, the Militia, and for governing such Part of them as maybe employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress."
Article 9: "
The enumeration in the Constitution, of certain rights, shall not be construed or disparage others retained by the people"
Article 10: "
The powers not delegated to the Unites States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."
It is
Q. Is "shall not be infringed" clear and concise? Restrictions on "Arms" are common in the laws of Federal, State and local codes.
See:
Second Amendment | Law Library of Congress