To be honest I bought two of the 19 round extended mags and never looked back. Trying to find a couple more so I can toss the 10 rounders in the bin or set fire to them depending on how my mood will be when the time comes. I've had so many problems with them and hate them that much.

The 13 and 19 round magazines are far better, made of different and more sturdy plastic. No idea why they went to the 10 rounders but I suspect penny pinching.

Shame as it's a well made gun and great with decent mags.