Brand new Aero Precision complete upper. 

Includes:

Standard AR15 charging handle
Stainless steel gas tube - Mid-length
VG6 Gamma 556 muzzle device
5.56 bolt carrier group  - black nitride
M4E1 Threaded upper receiver
15" ATLAS S-One M-Lok handguard
Ballistic Advantage 16" 5.56 Hanson mid-length barrel w/ lo pro performance series gas block