Online trading of weapons, ammunition, target and observation optics/opto-electronics, as well as equipment for hunters, sports shooters, and nature observers since 2013; 

Other industry expertise: 

- 2006 - 2013 Development and management of the BROWNING DEALER PARTNER distribution system in Southern Germany as a sales representation for BROWNING/WINCHESTER International S.A., Herstal/Belgium 

- 1995 - 2006 Sales outside service in the firearms specialty trade at JASPO GmbH, wholesale of EDUARD KETTNER, Cologne, as well as MANFRED ALBERTS GmbH in Wiehl 

- 1985 - 1995 Sales outside service in the firearms specialty trade at UMAREX GmbH in Arnsberg, as well as CUNO MELCHER KG in Solingen