I know and could care less what it's called. It is nothing but a high grade, expensive paint job and wears off way too easily for something advertised and named as "near Diamond Like Coating." While I take care of my Glocks and do not have (as yet) external wear or damage to the coating, internally it wears very rapidly to bare metal. Since it is advertised as hardness, wear resistance and slickness, the only one it achieves well is the slickness. Hardness and wear resistance is useless when it comes right off with impact such as what is seen inside a pistol's moving parts. While it MIGHT last a little longer on rubbing friction, it will wear through still too quickly. In the end, Glock has had much, much tougher, longer lasting and rust resistant finishes than what they now produce. The Gen5 nDLC finish, in my opinion, is nothing but a gimmick that sounds all Operator Tactical like but delivers little of it.