comes with everything besides tlr parts list below -SHS 12:1 Ratio 3rd Gen Ultra High Speed Gear Set Alrsoft AEG V2 V3 -Rocket SHS Airsoft Solid Metal Ollless Bushings - sold bushings -Rocket Airsoft High Torque AEG Motor Long lype -Rocket Alrsoft AEG Upgrade Spring M120 -Rocket Airsoft CNC Aluminum Ball Bearing Piston Head for AEG Gearboxes -Rocket Airsoft SHS Reinforced Polymer Full Steel 14 Tooth Piston -Rocket Airsoft SHS Cylinder Head for Version 2 - V2 M4 / M16 Gearbox Airsoft AEG -Gate TITAN V2 Basic Module AEG MOSFET - (Rear Wired) -Lonex Airsoft Steel Anti-Reversal Latch for AEG Rifle -Modify 8mm Ceramic Bearing Set -Lonex Stainless Steel Cylinder for Airsoft AEG (Suitable for Inner Barrel 240~550mm) -Rocket Airsoft CNC Aluminum Air Nozzle for Airsoft AEG Gearboxes -Retro Arms CZ Billet CNC 8mm Ver.2 Gearbox Shell for M4 / M16 Series Airsoft AEG Rifles -G&P - Shim Set (20x 0.1mm, 20x 0.2mm)