Colt is very close to selling their AR-10 variant, the LE901-16S.
It's preorder at the moment at around $2,100.
I'm watching it closely as Colt is selling it at a very attractive price point. If it's built to the same quality as the LE6920 and LE6940, it's great competition to the LMT MWS, Larue OBR/PredatAR, and GA Precision GAP-10.
Accuracy from the LE901-16S would likely be less than the OBR and GAP-10, but I'd be willing to bet Colt's 16" chrome-lined free-floated barrel would perform sub MOA.