Last summer my AR15 mounted Trijicon TX30 TriPower started having some issues, so I contacted Trijicon to send it in knowing I would have to pay something for the service. I was wrong. They sent me a nice note saying they no longer support that optic and will not work on it, paid for or otherwise. They were however kind enough to recommend some of their other products the currently sell and support.
And that's why I only buy Leupold Optics for both duty and recreation. If it's a weapon mounted optic, it has their life time warranty.