Dexter Morgan
CGN Ultra frequent flyer
2. Separately from #1, if it uses AR mags, they wi have to be pinned to 5 rounds. But if it uses proprietary mags (think LAR pistol) then the possibility of having Troy Pump Action Rifle 30-rounders that just so happen to fit my AR and are legal is huge.
That definitely won't happen. If it happens to accidentally fit an AR, they will simply call it an AR magazine.
However; If they make the gun with a proprietary magazine (that won't fit anything else) then we will have the luxury of unpinned magazines for it.