We all know Glocks are virtually indestructible from all variety of tests. The question I have pertain to Glock magazines. Do they match the legendary reliability of Glocks? I had a full loaded G23 magazine that I dropped onto concrete at the range. Can I expect some 'failutre to feeds' or any sort of compromised reliability of the mag? What are some of your experiences? I use my G23 for concealed carry, and I should probably buy a another spare mag. What do you guys think?