I bought my 9mm carbine a few months ago. I've been lurking here for a while... and my decision to make the purchase was influenced knowing there would be good help available in this forum Anyhoo...I just got a chance to take it to the range today. First time. It worked very well. Every time I pulled the trigger, something came out the front end. Vertically the sights were right on the money, but it shot very consistently to the left. It didn't take long for me to adjust the rear sight to compensate and after that, the rounds hit reliably dead center. But, I had to adjust the rear peep sight pretty far to the right to get it to shoot straight...up to the next-to-the-last index mark. That was more than I expected. So my first post, and my first question: I noticed that there are two Allen bolts attaching the rear sights to the rail. Is there is enough play to make a more coarse adjustment if I loosen and re-tighten them? I know I could just try it and see, but I don't want to introduce too many variables by playing around when I can just ask all of you who are familiar with the gun. Or maybe I'm just cockeyed.