There's a poll? On this topic, you're a veritable gold mine of useless misinformation.
I see that you haven't done your research.
United States Department of Justice did a report called "
Firearm Use by Offenders".
Purchasing firearms was least likely form of acquiring a firearm for criminals. Almost 40% of firearms were acquired from friends/family. Another 40% were from an illegal source. Of the guns that were purchased (14%), most came from a retail store, the remainder mostly came from pawn shops. Gun shows were only responsible for less than one percent of guns being acquired. (First page of the report.)
There's also some other statistics worth noting: Only about half the criminals that were carrying firearms received a more severe sentence for using a firearm. Oh, and the majority of weapons used by criminals aren't "military-style" weapons.
See, this is why you should do your research. Another AWB will take a vast amount of political capital, and yet be ineffective. Closing the so-called "gun show loophole" will take more political capital, yet not effect crime rates.
If you actually want to reduce gun violence, why not spend your political capital where it will be most effective? NRA isn't opposed to going after criminals - this is low hanging fruit here. Almost 40% of guns used by criminals were acquired illegally - go after those sources. Increase penalties for carrying a firearm during the commission of a crime. Create or increase penalties for family members and friends who provide a gun carried during the commission of a crime (for example, create an automatic assumption of liability for irresponsible gun owners whose guns have been carried during a crime).
We're in the real world here, and prohibition isn't possible in fact or in law. The gun bans proposed are ineffective for stopping crime. However, the NRA isn't going to defend criminals, and with its rhetoric about "responsible gun owners", isn't likely to push too hardly against the idea of holding irresponsible gun owners to criminal and/or civil liability.
Or we could revive the AWB, ban guns based on how they look, and ban larger capacity magazines. That won't do much.
After all, when someone decides to break into your home with a gun, are you going to be relieved they only have 10 rounds? That the weapon they are carrying doesn't have a folding stock, or a pistol grip? Thought so.