I purchased this upper as a back up. It never saw a lot of use. 40 rounds fired through it. It comes with a Magpul SL hand guard and the original m4 hand guards. It’s all original, complete Colt with BCG. 16 inch m4 profile barrel. 2015 manufactured. It has stayed in a padded bag protected from the other stuff in the safe. Excellent condition. $600.