Emisar D2 modding?

Has anyone seen anyone disassembly an Emisar D2? I know Hank has said the optic/emitters are not replaceable, but it’s hard to imagine that no one here has tried lol. I’d like to know exactly why it’s not replicable… I have a few… but I’d like to learn what the pitfalls may be before I begin to sacrifice one of mine.