I have a like new upper that I no longer need anymore. It has a Bushmaster A2 upper with a "Keyhole" stamp by the rear sight with a Wilson Arms (non chrome lined) 16" barrel in mint condition. I believe that it has not had more than 300rds through it and the whole upper still looks like new. Very little wear on the F/H from the wrench but nothing bad at all, 96%. If you are looking for a great upper for a build, this is a good start. Does not include BC/ B/ CH.