This upper has a 11.5 BCM Lightweight Barrel with a BCM unmarked upper. It also has a Infidel ejection port cover Upper shoots great and was built with good components. You may find a minor scuff or marks from mounting optics...but nothing major at all. Not a safe queen but certainly not a beater. Samson rail and DD sights not included. No Bolt, Carrier or Charging handle. It as a total of about 500 rounds through it. For pistol or SBR use only. $350 Can include a YHM quad rail for an extra $50 Only selling is I like the handling of my 12.5" slightly better.