That treaty can only be enforced by a national gun registration, which would eventually lead to gun confiscation. Exactly how the English lost their firearms.
The only way that treaty can be enforced in this country is to nullify the 2nd Amendment. I suspect that the anti-gun crowd will adopt that approach. Members of their community have already hoisted that flag, by calling it an "outmoded document", to see how many would solute.
This battle will be the defining fight for the future of the Rule Of Law in the country, and the Constitution on which it is based. Considering the recent Benghazi, AP and IRS scandals the Constitution has experienced a severe jolt, which adds to the slow motion shredding that has been taking place since 1968, the same year the Radical Left captured the Democrat Party during the 1968 Democratic Convention in Chicago.