A buddy of mine called me yesterday about a problem he's having with his AR. Bear in mind, he assembled his own lower and I have not had a chance to look at it. He's put about 50 rounds through it and intermittently he would pull the trigger and it would fire off two to three rounds as if it were an automatic. I haven;t run into this problem but it sounds like a disconnect spring is either wrong or broken. Anyone run into this?