This is a rare XPS3 night vision compatiable EOTech optic built custom by EOTech for themselves to use as a display/show piece so people could see the internals of their optic. This is a brand new, and fully functional piece. It is just made clear by EOTech for showing off purposes. It is also night vision compatiable. I would trade for certain Trijicon ACOG models (New or used) and I would also consider a trade for a tan/FDE XPS3 NV with tan/FDE EOTech magnifier. Also interested in Vortex Viper PST 1-4X24 or similar.