Features: Semi and full-auto firing modes Realistic construction and field stripping NS2 gas delivery system Metal slide Polymer lower receiver Adjustable Hop-Up Overall Length = 20.5 cm [8.07"] Overall Height = 14.5 cm [5.71"] Inner Barrel Length = 94 mm Inner Barrel Diameter = 6.05 mm Weight = 0.70 kg Caliber = 6 mm Magazine Capacity = 23 rounds Velocity = 104-107 MPS [340-350 FPS] Energy Output with 0.20g BB = 1.07 Joules Gas System = NS2 Propellant = Gas