Apparently the M9A1 has a 15 rounder. is it longer than the old M9 14 round mag? forgive me for not searching, but i figured 'magazine' would return a few thousand threads...
Mine says it is a 15 round magazine on the side, but I've never been able to jam that last round into the mag.
the 10 and 15's are the same size. The 10 has some plastic block thing in the bottom half to limit capacity. I have 2 15 round marked mags and 2 14 round marked mags (ie it has holes to count 15 or 14 rounds total in the magazine drilled in the side and stamped), but they all hold 15 rounds. Odd...
I was able to squeeze 15 th round into 14 rd. mags, but it was always tight. I am sure by re-working the follower (ala Beretta 17 Rd. mags) you can increase the capacity by a round or 2.
Hi, projekt, My M9A1 I got in June came with two 15-round magazines. I can get 15 rounds into both of them. Good luck,