At a USPSA match last week, a competitor was using a well-worn Glock. During the course of fire, his gun quit. He pulled the trigger and got nothing. He racked the slide and got nothing. No piece of brass or live round ejected. Repeated cycling of the slide did nothing. We started to clear the gun and noticed that the barrel wasn't unlocking from the slide.
We eventually had to field strip the gun on the course in order to clear it, and we discovered that the locking lug (if that's the right terminology) at the bottom of the barrel below the chamber had sheared off into the frame! When we pulled the barrel out of the slide, an empty/fired piece of brass dropped out.
The next day, the gun's owner dropped by Glock's USA HQ and they took care of him with a new barrel. So good job there.
Anyway, I thought it was an interesting failure mode, and one I hadn't seen before. Proof that every mechanical device, and just about every aspect of a mechanical device, can fail, given enough chances.
We eventually had to field strip the gun on the course in order to clear it, and we discovered that the locking lug (if that's the right terminology) at the bottom of the barrel below the chamber had sheared off into the frame! When we pulled the barrel out of the slide, an empty/fired piece of brass dropped out.
The next day, the gun's owner dropped by Glock's USA HQ and they took care of him with a new barrel. So good job there.
Anyway, I thought it was an interesting failure mode, and one I hadn't seen before. Proof that every mechanical device, and just about every aspect of a mechanical device, can fail, given enough chances.