I know they make them for the AR10. The barrel nut is different for both. The DPMS is 16 thread
and the AR10 is 18 threads. Also the DPMS top rail is 5/16" taller so the top rail will not match
up, unless you have one of the new A3 uppers, but then the DPMS is also shorter than the AR10
one so you will have a gap at the gas block.