Sent one in quite a few years ago with a broken reticle. Never had a warranty card or any kind of proof of purchase to go along with it. Threw it in a box, mailed it, got it back in less than two monthes and they even threw a set of scope covers on it to boot. Seemed like pretty good service to me. If I remember right, I just phoned wholesale for the contact info to Burris, gave them a call and they told me where to send it. Doesn't seem that not having a warranty service depot right here in alberta is really that much of a disadvantage.