FFL & Glock stocking dealer here. We sell NIB guns and have seen this happen exactly twice. 1st time was a G19.5 when they first came out, out of the box as we were removing the trigger bar it snapped. Glock sent us a replacement at no cost.Anyone else have a failure like this? Trigger went dead at the range during my last session. The little hook broke off. I have close to 10k on the gun. I had a spare so no big deal, but was curious if it's common???
The second was a customer with a fairy new gun and this spring failed on a first range trip.
Glock has good warranty and good customer service, they will send you a new trigger housing at no cost.