I've had three eotechs. One died, and they sent me a check, one sold with a gun, and I still have one. I prefer their reticle over an Aimpoint, but I can leave an Aimpoint on in the safe for like 10 years. That's hard to argue with.Aha....I didn't know that. Thanks for the heads-up, Kevin. I'll make sure to have some batteries always with me !