Specna Arms CORE Series M4 AEG (Model: M4 SBR Keymod / Black)

FPS Range: 375-390 Specifications: Length: 685mm – 765mm (Adjustable) Weight: 2120g Inner Barrel: TBA Magazine Capacity: 380rd Hi-Capacity. Works with Matrix, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Magazines Thread Direction: 14mm Neg