[ethigSmimbine]

ok mate you unscrew the lens on a susat sight and take a good lug and then see how far you get

I'm not familiar with the suat sights, but most night sights I am familiar with would be very difficult to break open, and unless you get your mouth on it, inhale it all, and hold your breath, I think it would be very difficult to get any serious exposure. I don't think the gun sites even have enough tritium to be dangerous to begin with. Tritium isn't very radioactive.