The air tank can be connected directly to the Angled Adapter with no additional components.
However, if you plan to use an 88g or 90g CO₂ cylinder, you will need to select one of the compatible 88g/90g adapter versions:
88g/90g Adapter: https://mcsus.com/products/88g-3oz-disposable-co2-adapter
88g/90g Adapter with on/off Valve: https://mcsus.com/products/88g-90g-3oz-disposable-co2-adapter-with-on-off-valve
88g/90g Adapter with on/off valve and gauge: https://mcsus.com/products/air-gun-pcp-88g-90g-3oz-with-gauge
VIEW INSTALLATION AND OPERATIONAL VIDEO: