I just bought nine of the same from him; they should get here late this week. He seemed accommodating when I told him I had an IBM carbine, and was looking for the same mags (I'm compulsive, even when, as here, not required). I just got my first carbine when I visited the North Store a couple of weeks ago (I posted a report back on 9/12). I had it shipped and it just arrived Thursday after an extra trip to my old address in MD. I've been reading up since, and disassembled it to see what I got. Let's ee if I can post pictures:

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