The association C4-Open’s main purpose is to once a year arrange the scale model exhibition/competition C4-Open. The association also works for the promotion of the scale modelling hobby.


Krister Sjöström E-post: Send E-mail Tel. +4670-6575250

Responsible for our sponsor contact

Erik Ahlström E-mail: send e-mail 

Responsible for competition entries

Jimmy Jönsson E-mail: send e-mail


Krister Sjöström E-post: Send E-mail Tel. +46733 816189  

Main judge

Jacob de Maré E-mail: send e-mail Tel.

Clubs, Vendors, SIG’s

Göran Nilsson Söderholm E-mail: send e-mail Tel. +4673-8320016


Are you having trouble with the adresses? they are also in the picture below (click to enlarge):