I just hadn’t seen one built on an AR15.
I haven’t either. The AR10 is still part of the stoner design family though. I think it predates the AR15 in fact. I think an AR10 in 6.5 creedmoor would be the ____which is why I’m buying one.
AR15 can’t support a 6.5Creedmoor. the older AR10, which the AR15 was patterned off of, can support it.