Great buy! - Aero Precision M4E1 AR-15 10.5in 5.56 Rifle Barrel Complete Upper Receiver with Flash Hider

Aero precision uppers are always a great product. You’ll hear people complain about quality control but speaking for myself the few I’ve bought from Optics Planet, have been excellent fit and finish and run flawlessly! Don’t try to compare them to a Daniel Defense platform as they are not intended for that market. Learn how to work on an AR so if you ever do inevitably have issues, you know how to fix them. That being said after shooting many cases of ammo through these uppers, I have yet to have any issues.