I have a very old Eotech 511. How old? Not really sure but maybe 8 to 10 years. Had it so long I don't know where all the paperwork, box, etc. are. It has the old round bubble/blister buttons instead of the rubber square ones like the ones now. Wear on the edges but, all in all, works great. Looking to move to an Aimpoint 'cause I just like the look of them better. So... what's the 511 like this going for these days? I can't find them used online. And... BTW... it is a real Eotech. Not the EoFakes that have been sold recently.