- Licensed TangoDown Reciever - Monolithic top optics rail - Flip-up front and rear combat sights - 350-400 FPS Muzzle Velocity - 150+ feet Effective Range - 8mm electric blowback Version 2 full metal gearbox - Included stubby Tango Down QD vertical grip - Included Tango Down design high capacity magazine - 2 x Tango Down Rail covers - Fully licensed laser engraved trademarks - Unique laser engraved serial numberSpecifications: Operation Electric AutomaticBody Full MetalFiring Modes Semi-automatic and Full-automaticMuzzle Velocity 350-375 FPSMagazine 300rd hi-cap magBattery Pack Size Nunchuck (NOT INCLUDED)Gearbox Electric Blowback Version 2 8mm Full Metal GearboxHop Up Full Metal & Fully AdjustableInner Barrel Length 363mmInner Barrel Diameter 6.08mmWeight 6.5 pounds Rifle