Personally I think it is a no brainer: an AR-10 chambered in .308 Winchester. They must surely have one of these in development for military and law enforcement..
I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!