Article V: Present but not accounted for...

All gun laws effectively serve as a work around in regards to the 2nd Amendment. No matter how warm and fuzzy the law feels if it infringes at any level our right to bear arms regardless of capacity, caliber, etc then it should not have passed Constitutional muster. Article V has always been available for this process but never used:

The Congress, whenever two thirds of both houses shall deem it necessary, shall propose amendments to this Constitution, or, on the application of the legislatures of two thirds of the several states, shall call a convention for proposing amendments, which, in either case, shall be valid to all intents and purposes, as part of this Constitution, when ratified by the legislatures of three fourths of the several states, or by conventions in three fourths thereof, as the one or the other mode of ratification may be proposed by the Congress; provided that no amendment which may be made prior to the year one thousand eight hundred and eight shall in any manner affect the first and fourth clauses in the ninth section of the first article; and that no state, without its consent, shall be deprived of its equal suffrage in the Senate.