I love Cerakote. I'm using it on all of my AR builds now.
This one is Burnt Bronze
This one is in Tungsten
And this one is a mix of Burnt Bronze and Graphit black
"No free man shall ever be debarred the use of arms. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government"
-- Thomas Jefferson, 1 Thomas Jefferson Papers, 334