Beretta Px4 Magazine .40S&W 14 17 Rds
attached the 3 round extender to the 14 round mags and they work like a charm. the magazines are very well made, heavy duty construction and easy to clean.
No corners cut on these mags. Sturdy, quality, and a fair price. Bought two for my PX4 sub-compacts with the grip extenders (EU00036) and its just what i wanted.