Hey guys, i bought 4 barely used factory mags for my CZ-75b (fairly standard 9mm model). Three look exactly the ones that came with my pistol, but one has these two indentions coming up from the bottom of the mag to just below the hole labeled "16". Also kinda strange is the font for the numbers on the mag (5, 10, 16) is different than the other mags, and there is a "15" hole on the other side of the mag. The seller showed pics & disclosed the indentions, but did not explain. Anybody know why this mag looks different. I will try to get some pics up this afternoon. Thanks!