I have the factory 10 round, factory 12 round, and 2 extra 12 round mags purchased through CTD. I have NOT had ANY trouble whatsoever with ANY of the 12 round mags. However, I have not had anything BUT trouble from the 10 round mag. I took it out again last weekend, and every time I tried to start with it fully loaded, it would jam after the 4th shot. I have taken it apart several times, and can NOT figure out what is wrong. Taurus said that they would replace it, but gee sorry they do not have any. Therefore, my .45 G2 "compact" will only work correctly with the full size mags.