But how can I be certain I am getting the most current version? I understand the original offering used a colored frame that did not hold up too well. Then they went to ceracoting the frames. This worked for a while but there were peallng issues. Then they finally got the ceracote to stick to the frame. Is that rendition correct? One more thing, any discussion about night sights or are least fiber optics coming out. My 50 year old eyes need help!