I talked to a Peoria AZ officer today and he said something, interesting. When he is out shooting and he goes to eject the 1st EMPTY mag from his glock and he pushes the button and the mag JUST WON'T COME OUT sometimes, he has a VERY sick feeling, I did not know that they are PLASTIC. The pause and pull out could be the difference between live or death, he told me. Peoria AZ forces their officers to use glock or he would have a Springfield or such with METAL mags