Yeah...KACs are the yummness. However I just dont see myself making that substantial extra $$ jump from say a LMT mws for it...specially given my needs. Weight oh yes weight. Well, gone are the days of sandbox fun, and even then we left the heavy shit in pelican cases if the mission did not require it. I honestly see my my needs as a range fun gun from 0-500m/y and something that can punch through shit better vs 556 when and if the Boogaloo hits us. Heck I was even checking out out 1000 dollar PTR 91's lol.
I think for AR gas gun Im leaning to LMT and DD, maybe Larue. And in piston, the only one that strikes me is the PWS. I really do want to like the POF revolution. But idk, the guts are thinned out of material to make it lighter and comparable to a 556 AR, and while no engineer I am, when firing the larger heavier 762x51 over n over, less material support doesnt seem ideal.