To be honest, Jesse I have no idea. Just got into the civy AR market in September, bought a colt LE6920 and built it up because I was in talks with contract work overseas. Didn't work out after finding out I've got another little one on the way, but biproduct found a whole new hobby!
Building a distance shooting DPMS .308 ground up now(though a barrel is proving difficult to find) and helping several others build theirs. Having a blast.
Don't know much about competition, my colt weighs in at 10lbs, heavy for a comp gun I can imagine but it feels amazing to shoot and handle. Someday, maybe. It's winter here, so just play time till it warms up.