I´ve another thread concerning Kahles Competition K series scopes. There aren´t too many replies though
So far the only review I´ve found is GunMart´s:
I´m also considering buying K418 or K624. I think both should be great scopes. Glass should be excellent, MIL1 reticle is almost the same as Leupold´s excellent TMR and the scope isn´t too heavy (bit heavier than mk4 but much lighter than NXS). Things I don´t like are the absence of illuminated reticle, MOA/MIL clicks/reticle (IMO it should be either MOA/MOA or MIL/MIL) and the reticle being mil-accurate at 10x magnification. I´d prefer it to be mil accurate on maximum magnification or on half of the maximum magnification like Zeiss Diavari 6-24x.