You know, although old, i know little about coatings. It could very well be CeraKote. What i do know is that he was coating whole Glocks and AR's in multiple colors and camo prints. So any curing must have been low temp. I saw several Glocks used in competition having many draws and reholsterings and the coating seemed to hold up pretty well.
I'm interested in having both a Glock and an AR done in matched colors.