these scopes are supposed to have 25 year warranty, but since highland outdoors have taken over, i believe there not honoring the warranty on older scopes. I had mine replaced about year and a half back,(a black one) when on full mag 55 yrd was droping 6 inch, but when on 35 mag all was ok? so sent it back to shop i bought it from, they sent it to asi who sent it to highland out doors, 5 weeks later i got a new scope(green top one). think they will honor warranty on any scope "they" sell.