I should have been more specific, sorry. I'm zonked on tabs, just had wisdom teeth removed so Im pretty out there.
Don't want to sound like a Call of Duty and/or (the supposed) "Seal Team 6," fanboy, but it need needs to be able to do everything to an acceptable standard. It doesn't have to do anything fantastic (but fire) but I need to be able to do anything to a standard tolerance, while being able to get good performance.
Primary role: SHTF
Secondary role: target shooting and plinking
Terttiery role: Home defines carbine
Other roles: Hunting, maybe competition shooting later on, making be feel like a bad ***, etc.
The Primary use mandates it be versatile, reliable, and have available parts in the US if we see the end if TEOTWAKI. This is tricky, because I like the SIG the most, I think the FN Fs2000 will probably fit my requirements best (previously listed), SR556 will probably be the easiest to get parts for while handling well, the Sl8-6 performs the best (shooting wise), and that the Robinson Arms XCR is probably the best all around.