This package deal includes the pieces you need to start building your own M4E1 (AR15) Rifle, including a M4E1 Threaded Upper Receiver, AR15 ATLAS S-ONE 15″ M-LOK Handguard and a M4E1 Stripped Lower Receiver.
- Aero Precision M4E1 Stripped Lower Receiver
- Aero Precision M4E1 Threaded Upper Receiver
- Aero Precision ATLAS S-ONE 15″ M-LOK Handguard
- All 3 pieces are finished in mil-spec Anodized Black