And my thumbs are f'ing numb! Even with the loading tool I only managed to get 29 in Which is the count on the back. I suppose since there is a +2 extension on the bottom, they say it's 31. Looks and feels just like a genuine glock mag but how they perform on the range remains to be seen. My G27 with a lone wolf 2-port extended barrel, tru-glo night sights, and a punisher skull slide plate with one of my new mags sticking out the bottom looks pretty mean! I'll post another thread when I know how they hold up on the range.