The Matt Eastman book says the Grade II wasn't available in 16 GA. It was available in the grade III in 16 GA and in the round knobs Lightning configuration. 12 ga had different mottif then the 16-20-28-410, they had grouse on one side and quail on the other the 16 ga was discontinued in 1990 so I don't expect there are many out there. The 16 is a square load like the 28 ga and pattern well.