going to sell one of my 2 eotechs. don't care which. just have no need for two and it's too bulky for my pistol build.
first is a 511. uses the N type batteries and is pretty compact. I have several spare packs of batteries to go with it. build date is 2006, but it went back to L3 for the spa treatment last year. comes with GG&G QD lever. $315 shipped.
next is a 512. uses AA batteries. build date 2013. comes with GG&G QD lever and flip up lenses covers. screws are a little rough from installing the cover (damn you factory locktight) but otherwise in like new condition. $400 shipped on that feller.