The guttersnip
Slash,
Is that your ASP? I know that NAA made them for the Guardian series for a time, (don't know if they still do). Their version was milled directly into the top of the slide though. That probably wouldn't be a hard sight to produce though, from a machining perspective.
I think that in today's pistol doctrine of, "FRONT SIGHT, FRONT SIGHT, FRONT SIGHT!" the guttersnipe would be novel, but just considered nostalgic. I remember some custom pistolsmith a few years back making a modern rendition of the ASP, and it actually had Novak's on it.
Regards,
Sherman House