"Reaffirming the inherent right of all States to individual or collective self-defence in accordance with Article 51 of the Charter,"
state=country collective=something like NATO
"and commends all States to carefully consider how to achieve such implementation in order to ensure that their national systems and internal controls are at the highest possible standards to prevent the diversion of conventional arms from the legal to the illicit market"
one way to do that is to make gun inaccessible. you could begin to do that with something like this: http://www.opencongress.org/bill/111-h45/text
if you read through all of the UN stuff on guns, you'll find that the goal is to take weapons from individuals. of course they have to present it in a reasonable way. who wants to see nut balls running around killing innocents?
there are two ways to bring about radical social change. one is to have a revolution. the other is to convince people that what you are doing is "reasonable" and in everyones best interest. the way to evaluate change is to understand the beliefs of the people advocating the change, and to be able to extrapolate the possible outcomes of the change. it's called lateral thinking. you rip a thing apart so that you can put it back together every which way and see all the ways it can impact your life. it takes a little practice.