Hi;
The OHWS is called Samson, and can be seen on A number of Vehicles. Mk has A Resin conversion for this OHWS that comes with the Pandur, or you can purchase the Samson OHWS as A seperate Item and mount it on A Vehicle of your choice.
I also purchased A Metal Barrel for the Rosomak which uses the same Gun as the Samson. Now all we need is A Pandur in Plastic.
THANKS OLIVIER; CHEERS MIKE.