What sort of assault rifle should I purchase?

[traf]

First If you think 5.56 suck you have never been shot by one. The Galil you like is also 5.56. Now lets talk sense if you are worried about SHTF think like this your not gonna find allot of ammo around for AK after things go sidewayz. But all police federal and us military use 5.56 and 7.62. So there never will be a shortage EVER! Now as for the best rifle Hands down M14 / M1A, Socom,Scout squad or just stander M1A.