That optic originally sold for quite a bit more than $600!

Compact AR Scopes: Hensoldt ZOi 4×30 vs Elcan Spectre OS 4×32 » OpticsThoughts

Comparison of two 4x AR scopes: Hensoldt ZOi vs Elcan Spectre OS

opticsthoughts.com

That page lists $1590. I don't recall exactly what I paid for mine. I don't think it was quite that high, probably more like $1450.
With the old Hensoldt ZF4's going for north of $1500 often times, I don't know that I'd part with mine for less than $2k. It is a sweet little optic.

But, I don't really use it. So if you want to talk, feel free to PM me. Cash + some trade stuff and I may be willing to let it go.

 

Idk where I got the $600 number honestly, I think I saw an add somewhere for an old one a while ago and there was something wrong with it. Id be interested though, is it pretty comparable to an elcan? Im trying to make a ksk g36k clone.