WE M9 Biohazard Dual Tone Gas Blowback Pistol ASR it is the one gas

it is the one gas gun with the most metal parts in the market today

Madbull Airsoft Noveske Gas Block Switchblock

Full and semi automatic firing modes are selectable

Furthermore the pistol has unique serial number

Inner Barrel: 160mm

WE M9 Biohazard Dual Tone Gas Blowback Pistol ASR it is the one gasDescription: WE Biohazard M9 Dual Tone Gas Blowback Pistol Features: 300 330 fps with . 20 BBs! Slide blows back for realistic "kick" Adjustable hop up Double or single action Engraved "S. T. A. R. S. R. P. D." and "Samurai Edge" on the slide just like in the Video Game Specifications: Caliber 6 mm Power Green Gas Capacity 26+1 Brand WE Rear Sight Type Fixed Notch Front Sight Type Adjustable Trigger Type Double Single Ammo Type . 20 Airsoft BB Fps 300