To me, the most disturbing aspect of the Paris attack was the US massacre method

[Recursion]

79. The guys who trick out their ARs use them to hold flashlights

I'm not part of the AR "culture" or whatever you want to call it, but I get that it's essentially the Linux of firearms and that people who like to tinker with stuff love it.

For that matter, we could go California's route and still allow that rifle model but simply mandate that the magazine be fixed.

My bigger problem is that worrying about mass shootings is simply nibbling around the edges of the real problems, which are

1. Non-mass shootings, and
2. (even moreso) suicide

both of which are overwhelmingly done with handguns, which I think we should limit more than we do. And for that matter the Constitutional argument for a handgun is much weaker than for a rifle. It's like having a transportation safety conversation driven entirely by plane crashes that ignores the much deadlier problem of auto crashes.