I've been trying to talk my dad into buying an EOTECH for a really long time. The other day at a gun show we saw an really clean used eotech (I can't recall the model number, but it used type N batteries and was not NVG compatable) for $200. The seller didn't have batteries in the sight but he told us that we could buy it and go test it and if it didn't work, he would refund the money so we bought it. When we put batteries in it, it looked like it was fine, but then when we got outside, we discovered that even on the highest brightness, the reticle absolutely dissapeared. I've never owned anyting but cheap BSA dot sights, and even those worked fine in the sunlight, and I can't imagine that our troops would use a sight that was so hard to see in daylight. Is this normal? We took it back and after a lot of trouble, the dealer refunded the money. I'm just wondering if the sight really was defective, or we were just expecting too much.