“How the Glock became America’s weapon of choice” | Fresh Air (24 January 2012)

[carl]

Failure to feed. Most likley caused by me. I had a shotgun pointed at me by a very unfriendly person about to pull the trigger, actually he did pull the trigger and while I was ducking, I was also pulling my weapon from my duty holster and I had a very poor grip on the weapon, which is probably why it failed to feed the second round.

What year did that happen? We had a problem with our Glock 31s in that they would occasionally lock open after firing 2-3 rounds from a full magazine.
When we brought it to their attention they responded immediately by adding an additional coil to the magazine follower spring and giving us replacement springs for every magazine for free. That solved the problem. Everybody initially thought it was from not gripping the gun tight enough or properly, but it wasn't.