the oriignal tiger link doesn't state the safety rating on the visor itself, only for the helmet. I would be looking for a visor that offered at least ansi 87.1 if you're talking about a clear visor. The face shield won't protect your face if a shot can penetrate it.
I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.