S&T M4 URX4 M-LOK SD PDW-M Challenger line G3 AEG

[Product Details]
・Material: Frame Nylon Fiber / RAS Metal
・Total Length: Approx. 600mm - 700mm
・Weight: Approx. 2,390 g
・Included Magazine Capacity: Standard M4 Magazine 340 Rounds Spring-Fed (Made of Steel)
・Connector Shape: Mini (Battery Stored in Stock)
・Safety/Semi/Full Auto
・Variable HOPUP