Put a total of 350 rounds through my P3-AT serial number J8L 0#. No peening, no failures of any kind. No nothing but bang...bang...bang. I went a couple weeks ago and put 150 through it and decided if another 200 works I will feel secure in my new little pistol. I can't be more pleased and the range master wanted to know what I thought of the P3-AT...he should be picking his up in a couple days. I have been telling co-workers to be careful buying one of these but now I have no problem recommending them.