FN made a new rifle and a new cartridge. Long stroke piston AR18-ish rifle with a folding stock. No details on the new cartridge other than metric designation and some pictures. It’s a 6.5x43. Looks like a grendel/x39 case head with an OAL a little longer than 5.56. 2 piece case. Both case head and cylinder are steel. Maybe it runs at really high pressure? They got Magpul to make 25rd pmags for it. Anyway it’s in the military section of FNs booth so maybe won’t make it to the civilian market.