Base is Krytac Lvoa - s - only upper/lower/gearbox left Polarstart f2 Maxx Model Maple leaf 70 MadBull - Daniel Defense 20'' Gov't Profile Outer Barrel G&P Aluminum Waffle Heat Sink Grip for M4 AEG (CNC Process) G&P PDW Stock for TM / G&P M4 AEG series (Checker, Sand) PDI 6.08 Precision Inner Barrel for AEG (520mm) Emerson 22cm Airsoft Suppressor Cover (black) Valken Grip Connect Connector for M4 AEG Madbull Barrel Nut Washer set Madbull Top Rail Gas Block for M