Originally Posted by metroplex
FYI No such thing as a 33rd G17/G19 mag. There is, however, factory made 31rd +2 (7151) G18 mags.
The G18 33rd mag will fit and function properly in a G17/19... so yes there is such a thing as 33rd mags for G17/19. I have one.
Glock 19 - Gen 3