Steyr is releasing an AR10 in, what appears could be, a better version of an MCX. Short stroke piston, side charging, folding stock, sub MOA accuracy, under 6.5lb! Now get me a 556 and 300bo version with the same attributes but under 6lb and these would be VERY hard for me to resist.
https://www.youtube.com/watch?v=rnlkZNaTEC0