Up is my Eotech EXPS3-4. I purchased a couple of years ago - mounted it one time on my AR, never took it out of the house and it's been hiding in my safe since. Wonderful and pristine sight. Features 10 Night Vision Compatible settings! Transmission holography allows for a parallax free optic with unlimited eye relief AR223 Reticle provides fast CQB engagement with ranging out to 600m! Reticle is tuned for M855 62grn bullets out of 14.5" barrel Rugged design with shatterproof glass and aluminum hood assembly. 7mm raised base for unobstructed co-witnessing. Battery sits perpendicular to the optic giving a much more compact size, only requires 2.75" of rail space. Controls on the left side for use with a magnifier Mounts easily to any 1" Weaver or M1913 picatinny rail. 600 hour continuous use battery life on setting 12 with 1x CR123 lithium battery Waterproof to 10ft. $590 shipped, CONUS. Insurance on you. Email me if interested or you have any questions: prairiefiremd at yahoo dot com