Npap. It's a rifle, not a gun with a plastic bit on the end that might brake or otherwise fail.
I never understood the whole "everyone will have 5.56" argument. Are you planning on killing everyone to get it? You think cops are going to give it away? Just seems silly to bank on that.
As far as spare parts, I like guns that won't break in the first place. You can get spare AK parts dirt cheap, hell you could buy 2 WASRs and be good to go for quite some time.
This, of course, is dependent upon you surviving the initial melee.
Ya but I can carry so much more 5.56!! I'm a small dude and I have an in at the police precincts! Lol
I have seen some incredibly ratty aks in the Middle East that looked like that sat on the bottom of the ocean floor for 20 years and they seemed to work just fine.
With all considered I'd still depend on my Daniel defense mk18 with any scenario