High I'm looking for a 1piece FF hanguard for my DPMS Oracle 16in 5.56. I'm trying to find one that has the exact same height as the rails on the upper reciever. I have seen some that are close, but sit maybe a 1/8 to a 1/16 of an inch low. I don't really have to have it uninterrupted rail but that would be preferred. I'm also wanting the rail system to replace the barrel nut. If anyone has any advice or perhaps pictures of their own Oracle please help me out.