Im sure that ya heard that they will blow with certain type of ammo,but,I have never heard of one doing so with any factory ammo that is available at present. When we did testing on Glockes we were using sub gun ammo,to the turn of over 5000 rounds through the test gun. Now i will advise you that a number of smiths bought the farm,but a Glock,aint gunna happen my friend. I am a retired deputy,and here in Mi.,I was one of those who did the original testing on them on my side of the state. Now in handloads that might be a differant story,but again,if you are using your head,it is not going to occure. for that matter,I have never seen a glock blow,weather from a round,or when it got dropped from a chopper from 500 feet onto tarmack. No parts,slapped a mag in it,and it perked right along. You could count the parts in the other semi-autos that were tested,if you could find em. King :-D :-D :-D