USED – Aero Precision M4E1 14.5″ 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
This complete upper comes assembled with Aero’s M4E1 Threaded Assembled Upper Receiver and the ATLAS R-ONE Handguard. Includes:
- M4E1 Threaded Assembled Upper Receiver
- ATLAS R-ONE Handguard of choice
- 14.5″ 5.56 Mid-Length CMV Barrel
- Low Profile Gas Block and Mid Length Gas Tube
- Product comes assembled
- This complete upper does not include BCG or Charging Handle.
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel.