1 × B5 Systems Enhanced SOPMOD Mil-Spec Stock – Black – OEM; 1 × Discount Mil-Spec Carbine Buffer / Receiver Extension Kit

1 × NBS Mil-Spec M4 Carbine Stock; 1 × Discount Mil-Spec Carbine Buffer / Receiver Extension Kit

1 × Aero Precision AR-15 Assembled Upper Receiver; 1 × Aero Precision AR-15 Stripped Lower Receiver – Black

1 × Discount Mil-Spec Carbine Buffer / Receiver Extension Kit; 1 × MFT BATTLELINK Minimalist Stock – Mil Spec – Black – OEM

1 × Aero Precision 5.56 Bolt Carrier Group – Black Nitride; 1 × Aero Precision M4E1 Threaded Stripped Upper Receiver

1 × B5 Systems BRAVO Black Mil-Spec Stock – OEM; 1 × Discount Mil-Spec Carbine Buffer / Receiver Extension Kit