I just bought my first ever gun, a brand new Glock 19 The next day, I went to the firing range with my friends. One of my friends was using my Glock and he jammed it! He said a brass got stuck and he needed to use his fingers to remove it. We believe the culprit was the bad used magazine I'm sure everyone's heard how "perfect" Glocks are but I'm just anxious so is the Glock going to be OK? Are they built to handle jams? It fired fine aftewards by the way Thanks!