http://www.zib-militaria.de/epages/6143 ... cts/100086
Push comes to shove I'd take a G3 scope (externally same-ish but BDC is wrong).
I'm being a tart and want this for my HK MP5 (not the GSG one) as I'm fussing about how it looks rather than how it shoots........ given mine only gets shot at 20 yards then the BDC being wrong doesn't matter to me hence I'll take a G3 if I have to.