I'm a huge fan of Rock River Arms. I've had my Elite Operator for a little over a year and it shoots sub MOA all day long. I've got about 3000 rounds through the rifle without a single hiccup. Now some will scoff that RRA does not have a milspec barrel, but I think that the RRA barrel is actually better than milspec. All debate able, but they are a hell of a lot of gun for the money.
When in doubt... empty the mag!