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 Handguard of choice and a M4E1 Stripped Lower Receiver.
Includes:
M4E1 Stripped Lower Receiver (Tungsten Cerakote)
M4E1 Threaded Upper Receiver (Tungsten Cerakote)
15" M-LOK ATLAS S-ONE Handguard
All 3 pieces are finished in mil-spec Tungsten Cerakote