Your slide should not have broken when it was dropped. I suspect it has a stress fracture and needs to be replaced. Simply welding it and stress relieving it may not fix it and could make it very dangerous. It's far safer to have Glock replace the slide. But no. I don't know anyone who would or could do work like that and put their name on it.
I suspect it has a stress fracture and needs to be replaced. Simply welding it and stress relieving it may not fix it and could make it very dangerous.