Aero Precision M4E1. All factory built. Brand new, unfired.
- Aero M4E1 16" Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard
- Aero M4E1 Complete Lower Receiver w/ MOE SL Grip & SL-K Carbine Stock
- Aero 5.56 Bolt Carrier Group, Black Nitride
- Aero BREACH® Ambi Charging Handle w/ Large Lever