jasmith85 thats really unsettling to hear especially given the age of these guns. These should have all the newest fixes in them and shouldn't be an issue of break in. You can 1) try feeding different ammo 2) swap in apex parts 3) send it back to glock. Since you're experiencing this with 2013 guns it very might be an option #3
what you have is a gangsta glock prototype meant to be eject properly when shot sideways