I am thinking about getting a DPMS .308 cal rifle. I don't know anything about rifles but when I saw this one in a local shop, I WANTED IT. I only own handguns. I wanted to know if there is a web site that could answer newbie questions, no matter how dumb they sound. I want to find out everything...What I can add on it(compensators, flash hider,different buttstock, grips, gas blocks, scopes etc...) I might sound like I know the terms, but I am just copying the terms out of there catalog next to the pictures that I would like to see on mine when I buy one. So if anyone can direct me to a site or lend your own advice, it would be appreciated. Thanks, Anthony