Cybergun Thompson M1A1 AEG Airsoft Submachine Gun Features High power Automatic Electric Gun Velocity 466 with 0.12g and 380with 0.20g BBs Energy: 1.21 Joule Metal body and gearbox with simulated wood grain finish Full metal gear box with reinforced steel gears and metal bushings 2-way adjustable rear sight for windage and elevation Battery and charger included Works best with 0.20g BBs or heavier Weight: 7 lbs Length: 32 inches