I got a brand new glock 19 gen 4 on Thursday and took it to the range for the first time today. I was getting great groups, however the groups were all about six inches to the left of my aim point. I tried a different grip and sight picture. Same thing. I got my SIG out to see if it was me. It was not. I was hitting dead center. I let my buddy shoot the glock to see if he had the same issue. great groups, six inches to the left of his aim point. Can the Glock gurus tell me what is going on? BTW I have never had that issue with my glock 22.