Someone correct me if I'm wrong but this is not a misfire it's a slam fire. A misfire is when the trigger is pulled and the gun does not fire. To me this is worse than calling a magazine a clip. How would his gunsmith know what is wrong when he takes the weapon to be repaired? He could send this gun to Glock and tell them it misfires when they test the gun they find that it does not misfire and send it back. Then he shoots himself in the leg and bitches about Glock's incompetence. This happens all the time, you need to be able to describe accurately what is happening if you expect the company to help you.