Whoops, maybe I need to learn how to count again. Sorry OP for any confusion. I just glanced at your pictures and went a grabbed one of my 10XX mags to see whats up. I can faintly see a 10mm roll mark on the mag body. Looks factory. Maybe these were test mags for a 10XX in a smaller package? I'm sure Sevens will chime in soon with a much better opinion than mine on this. At a minimum, I'm sure he can count the correct amount of witness holes. *Facepalm*

SVT28

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