S&T M4 URX3.1 8" Challenger Line G3 AEG DE (KAC engraved)

・Manufacturer: S&T
・Full length: Approximately 720-800mm (at the time of stock expansion and contraction)
・Weight: Approximately 2,510 g
・Material: <<Nylon Fiber>> Upper Receiver, Lower Receiver, Stock Stock Pipe
≪Metal≫ Hider, hand guard, outer barrel
≪Pla≫ Trigger, grip
・Magazine: 340 rounds Spring-loaded bullet type ※Made of steel
・Connector shape: Mini
・Full/semi-auto
・Variable HopUp system
・14mm CCW
・Metal mechanical box