Great question, no this will not with any of the Armalite style AR10 receivers - These are for LR308/DPMS pattern AR10 receivers only.
The easiest way to tell the difference (at least in pictures) is looking at the back of the receiver. Armalite AR10 pattern receivers are angled off in the rear while LR308/DPMS pattern rifles have a rear section much more similar to an AR15. Thanks!
No, it will not. It will fit on DPMS Gen 2 and or LR308 platform lowers.