That's too bad. I bought mine a couple of months ago to shoot some cheaper ammo and it is same size as my Glock 19. I have put about 2000 rounds thru mine of almost every ammo I can find except CCI Minimags because I knew it would shoot those. I have put lots of Federal of various grain weights, Aguilla, Winchester Wildcats, Remington Golden Bullet, and Blazer. Have not had a single failure to feed, fire, or eject on the gun at all. I have had a few fail to fire, but put the round back in and shot again and they always fired.
I have also had zero problems with first round feed due to magazine loading issues and I go out of my way to just throw the rounds in the mag and not try to align the nose of the first round upward.
Very happy with everything on it except I don't like stock Glock sights and have painted top edge of front and rear sights to give me a much better sight picture and POA. Had to adjust windage to the right a fair amount and did not want to try to move the sight so just used the adjustment.
Picture of painted sights...