I don't think a 6920 is ever a bad move, if you're worried about future availability. But, it seems that you've deviated from your original post.
If you want a 6920, in OEM guise, I see them locally and online. Just buy one. Seems that you're on the fence. I think you need to figure out what you REALLY want... then start the research and questions.
You're right. I'm just looking to scratch an itch. Pennsylvania prohibits the use of autoloading rifles for any type of hunting, and I do not shoot competitively, and so the AR will mostly be a fun range gun and available for HD (or just put up for safe keeping).
I have one AR (a 6920), but I have two kids. I want to fix that soon in case it becomes difficult to do in the future. Another 6920 is the easiest solution. I was hoping to find one locally, but I'll probably need to buy online.
