Hello to all, I am a new member to this forum. I am looking to buy a VP9 and have a question on the sights. What material is the standard 3-dot sight made of? Do they glow to any extent and how long? I am being told that the VP9 LE night sights are illegal to be sold in the US due to they have tritium in them. Personally I think that either they don't know what they are talking about or they are just plain screwing me. Any help on this matter is greatly appreciated.