According to the US Citizenship and Immigration Services website a citizen has a "Responsibility to defend the country if the need should arise". Could ANY minimization of gun rights on any citizen be considered treason?
From the Constitution of the US, Article III, Section. 3. "Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court. The Congress shall have Power to declare the Punishment of Treason, but no Attainder of Treason shall work Corruption of Blood, or Forfeiture except during the Life of the Person attainted."
From a law dictionary the definition of "aid and comfort" is, "To render assistance or counsel. Any act that deliberately strengthens or tends to strengthen enemies of the United States, or that weakens or tends to weaken the power of the United States to resist and attack such enemies is characterized as aid and comfort."