The arguments I think, if I’m not mistaken are two fold. One is that you have a constitutional and historical right to own weapons (to enforce or protect liberty) and the second I think is the personal protection from thugs, as guns do level the playing field against stronger or more numerous attackers. In the first case, I don’t see how you can resolve that, and that can’t really be compatible with disarming (almost) everyone. In the second case, unless you’re Bruce Lee, being attacked by a group of angry “YOBs” in the handgun free UK (or anywhere else) is no fun, but if you have a weapon (plus some training) you can always (try to) defend yourself. Now one can’t legislate against said thugs (even in gun free environments) and one can’t really effectively police the smuggling in of guns from Mexico and elsewhere it seems. Guns which go to criminals, although one could also argue that those guns don’t always go to small time muggers but to organised crime which usually stays out of the way of the average citizen but to enforce their own internal rules.
On a personal note, I do find guns scary. One never knows what goes on inside the head of another person, and I do find that when talking to someone who has a weapon on him I am restricted by the notion that if I say something wrong, he could just shoot me (instead of punching me) and so I think guns do restrict freedom of expression or personal freedom too, or at least personal comfort. I once had someone point a weapon at me casually for a split second at university and I still remember it to this day. Not fun.