Yes sir, the barrel is free float, chrome lined. Rock River Arms (aka. RRA) are a well known manufacturer in the AR15 world. They make fine products that will stand the test of time. The whole upper that I have for sale will drop right on to any complete lower and will be a fully functionable and very accurate rifle. If there is anything I can do to help you out or if you have any questions feel free to ask!
Yes sir, the upper is complete with bolt and bolt carrier. I can get you more pictures if you are interested. Let me know if you need anything else. Thanks