When it comes to the handling of guns, it's more of a customary practice. For example, you would be gifted a gun. Even traditionally, if someone were going to be a chief, it would be a gun in a blanket. Guns are handed down, just like in your family.
Like I say, the problem we have is the lack of respect from government to help us enforce those laws, but we do have customary practices when our elders gather. When the clan mothers say something, the men will enforce it.
If there's an issue regarding guns, they'll deal with it in a more communal way in many instances. I can't say overall, because we need to respect the true autonomy, jurisdiction, and authority that each first nation has. That's what we need to understand, and that treaty right to hunt is on and off reserve as well.