I was talking to a rep from Crimson Trace.
It seems they are thinking about making a sight for our P99s.
Looks like the more inquiries they get about it, the faster it will be produced.
Sounds like they might incorporate int in the backstrap.
If anyone else is interested, I suggest you put a request in on their future request page. http://www.crimsontrace.com/default.asp?id=501&a=future