(sorry for the rambling to come)
Guns are used for offence.
First and foremost, civilian firearms are a sporting and recreational tool. After that, they're a defensive tool. After that, they are an offensive tool. There's enough statistics to prove this, but that's hardly relevant in the discussion.
It should also be noted that the vast majority of "murders" in western statistics are suicides. Guns simply provide an easy and effective tool to painlessly end your life with, but their absence doesn't suddenly make you want to live longer... Nor does the absence of guns lower violent crime.
What you need to realize in a gun control debate, is where the "no concessions" pro-gun stance comes from. Historically, gun laws have only ever become stricter in 99.9% of the cases. Loosening of gun laws is extremely uncommon. The consensus based anti-gun stance is often to slowly restrict, but in the end, over time, allow nothing to remain.
In the example of the Las Vegas shooting, I totally agree the slidefire or bumpfire stocks are of no value to a sportshooter at all, but I will never defend the tightening of gun laws to ban it simply because it's of no use. After banning slidefire stocks, they'll move on to banning binary triggers (triggers which instead of firing once when pulled, fire when pulled AND when released). Binary triggers are also entirely retarded and a result of the wording of current american guns laws & ATF regulation, but again, I will not support their ban.
To my knowledge, this is the first time a slidefire stock has been used for any major incident. And now we need to ban them because they are evil.
Sorry, but no. Not unless the american gun owners get something in return. Like concealed carry reciprocity act (federal legislation allowing people with concealed carry permits to carry outside their own state) or the hearing protection act (which allows easier usage of suppressors). Clinton obviously pushed her stupidity by tweeting "imagine if he had used a suppressor" after the shooting in the hope of killing the proposed hearing protection act, but do you realize how LOUD the guns are which he used? Suppressed the guns in question would have produced over 120 dB. It's a non-issue.
Finland has "over the counter" unregistered suppressors for forever. Ask a Finn how often they are used to ninja hollywood assassinations.
Either way, pro-gun tends to promote self-reliance, responsibilization and punishing of the guilty instead of wholesale banning things because you don't like them. Anti-gun exclusively allows the state to have a monopoly on violence. But the state is simply now always there to protect you, and how could you believe it ever could be?
Let me illustrate with an example. An opinion piece from The Guardian was recently published in a local newspaper here which quite aptly shows our difference in reasoning:
The piece talked about a recent incident in some american city. A bullet shattered a window of a house (or apartment) and the father of the family living there frantically called 911 and requested an escort out of his house. He wanted to take his wife and newborn to a hotel in the hopes of being safer there. Although dispatch kept telling him for over 30 minutes that the cops were almost there, they didn't show up.
Now, the opinion piece wanted to show how guns are evil and that they should be banned to prevent other families from enduring this hardship. The writer seems absolutely oblivious of the fact that most pro-gun people would react with "well, if the father had a gun, at least he'd be able to attempt to protect his family if some hoodlums tried to break into his house after shooting it up, because the cops clearly aren't showing up on time to save anyone". The very case which he uses to show how dangerous guns are can be reversed to show a need for guns to be used defensively.
Here in Europe (except CZ), concealed carry is almost entirely restricted to the super rich and/or the powerful (politicians, judges,...). Why do these people have more rights to defend themselves than others? If we are all equal, why is my life less important? Why am I less trustworthy?
Carrying weapons used to be a right in many of the European countries. Think of the British Bill of Rights. Hell, in my home country, carry of firearms was common place up until the second world war. Yet, there were no big shootings, no noteworthy incidents.
Now, we have lost our rights, and will never regain them. As
Jesse Hughes said after finding out multiple off duty cops died at the Bataclan massacre: we don't even allow off duty cops to carry anymore, and we may very well have fared better if we had. Jesse now travels armed everywhere where he legally can. And I can't say I blame him. I believe it is his natural right to protect himself by the best means he has at his disposal.
Hell, here in Belgium we can't even carry utility knives, pepper spray or tasers.
There is a quote that sums it up quite nicely: A man is asked why he conceal carries a firearm on his person. The man answers: "Because I can't carry a police officer in my pocket".
Ideally, you wouldn't need to carry any weapon, but until we can guarantee everyone's safety, it may be the only way to allow responsibly citizens to defend themselves.