Thought you were fixing to trot out a .380ACP with blind magwell that gets charged with stripper clips.
You are dating yourself sherp.
Old as dirt and twice as crusty.
Well I think that was the original Grendel. Seems like that was first and then then the next 2 I can recall were the detachable box mag .380 and /or the P-30, predecessors to the P-11 and PMR-30.