Golden Eagle Gas Charging M4 Stock Adapter for M870 Gas Shotgun Series (Fit Marui Tri Shot Gas Shotgun)
 
Full metal construction.
Replace the fixed stock and gas tank of the Golden Eagle / Tokyo Marui M870 Gas Shotgun.
With M4 Stock, But Model Be Changed Everytime (Type Not Fixed)
Support 134a gas and Green gas.
Suitable for both Golden Eagle and Tokyo Marui M870 Gas Shotgun