I have a 92FS and five standard mags for it. Last Saturday at the range I emptied all five mags as fast as I could and noticed that the barrell was so hot that the front sight was blurry. Since this was the first time I had done this, I was wondering if purchasing more mags is worth it? How hot would the barrell have to be before I get concerned about safety and accuracy? Should I even waste money on additional mags?