IMO, it is their own version of Cerakote.
As you know, Cerakote is also a "thermally cured" coating.
And, at only .5-1 mil thick it is a "nano" coating too.
Thomas Jefferson: "The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes....Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man. Thomas Jefferson's "Commonplace Book,"