One suggestion for a presentation concept that has worked beautifully in other areas: you may find you reach a greater cross-section of attendees if other types of firearms are represented at the table as well as the AR/AK platforms. That said, AR/AK pistols are less common and could incite serious interest from those who've just seen 300 rifles at Cold War but nothing that looked like *that*.
Having 20 variations of EBRs at the table may be interesting to some, but how about a slow bolt, lever, python and 1911 (maybe an IPSC open gun?) being there as well?
Last thought- holding an AR rifle may be intimidating for some of the wives/girlfriends who attend with their gun-loving significant other. I'd really like to see us have a less-imposing option for those females interested in something they can use bedside, for plinking or whatever their needs. I'm thinking along the lines of a CZ75/Glock/XD.
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My comments are not the official position or a statement of any organization unless stated otherwise. My comments are not legal advice; if you want or need legal advice, hire a lawyer.