We have cops in the UK too. They carry guns (most of them). They leave the gun at work, where it belongs. I see no need whatsoever to have a gun, personally. There are still too many shootings in the UK.
Gun deaths in the USA by either accident OR homicide? 4.34 in 10,000, or a 0.045% chance.
Gun deaths in the UK by either accident OR homicide? 0.18 in 10,000, or a 0.0018% chance.
Basically you're more than twenty times as likely to be shot in the US than you are in the UK; you're ten times more likely to be shot by accident in the US than the UK.
So, yeah, I'm for a gun-free society.