News: The Pennsylvania Commonwealth Guard Will be Adapting the Swiss Steel Stunk Rifle as PS20. The Pennsylvania Commonwealth Guard recently announced it would adopt the Swiss SMG Known as the Steel Skunk into Military Roles. The Steel Skunk will be Re chambered  to use 9×19mm Parabellum rounds instead of the  9×20 mm SR Browning. The Steel Skunk Variant Will be Manufactured by Kahr Arms and will see some use with Counter Terrorism Forces in Ratsirana.