Alpha Parts Tactical Gas Stock Kit for Marui M870 Tactical Shotgun Replica-Type_PISTOL Metal Magazine accommodate one cartridge

Metal Magazine accommodate one cartridge of CO2 tank (fits on 12g CO2 cartridge)

the Fusion Engine

Outer Barrel

From there this allows you to control the spread of how the BBs come out

**Nominal voltage (average discharge voltage): discharge current 0

Alpha Parts Tactical Gas Stock Kit for Marui M870 Tactical Shotgun Replica-Type_PISTOL Metal Magazine accommodate one cartridgeAlpha Parts Tactical Gas Stock Kit for Marui M870 Tactical Shotgun Aluminum Construction Design to allow The Tokyo Marui M870 Shotgun to adapt M4 stocks The stock also acts as an enlarged gas tank for the shot gun as well. Suitable For Tokyo Marui M870 Tactical Series Shotgun