UKA-CA-CA117M-DTSpecifications: Brand: Classic Army Operation: Electric Automatic Material: Metal Outer Barrel Polymer Stock, Motor Grip Firing Modes: Full Automatic, Semi Automatic, Programmable Burst, Safety Muzzle Velocity: 390 400 FPS (w 0. 20g BBs) Magazine Capacity: 300 Rounds (High Capacity) Gearbox: Full Metal Version 2 (w 9mm Bushings) Battery: 7. 4V Buffer Tube LiPo (not included) Connector: Small Tamiya Hop Up: Adjustable Inner Barrel Length: 300 mm Inner