Well I am about to see what kind of warranty holosun has. I bought their 503g with the chevron acss reticle and it has been a pretty good match for my AR build in 7.62x39. A couple months ago it cost me a deer as it went into it’s auto off mode and would not shake awake. By the time I got it on, the deer was out of range. I finally got around to checking it out on the bench and the shake awake is truly kaput. I replaced batt and tried it again. After 10 mins it goes into (sleep mode) never to be awakened again except by manually turning it back on. If it had a setting just to leave on all the time it would still be ok but the damn thing turns off every 10 minutes no matter what. Going to send it back but reading on the www it sounds like this is an ongoing problem for holosun and the next one will probably do the same thing. When I talk to them, maybe I will request a model that has a constant on feature. That way when the shake awake dies again I will still have a somewhat useful optic. Anybody else with holosun troubles?