Daniel Defense has their Delta 5 (or whatever's it's called). Seems that AR companies are hedging their bets with more politically safe bolt guns. Not really sold on these carbon-wrapped barrels yet, although they be the future:
https://www.springfield-armory.com/model-2020-series-rifles/model-2020-waypoint-rifles/
https://www.springfield-armory.com/model-2020-series-rifles/model-2020-waypoint-rifles/