COLOR TREE Airsoft Propane Filling Adapter for Green Gas

Features ✅ Use with any Standard Camping-style Propane Tank.

✅ Silicone oil container: Store silicon oil and lube your GBB with refill propane.

✅ Airsoft Propane Filling Adapter with a pressure gauge so you can observe the amount of gas used.

It's with air escape valve, can let the air out when you needed.

✅ Non-leaking design: The silicone oil will mix up with the propane while not use.

The silicone oil will not leak out from stem.

✅ Mixed propane with silicone oil: Only when you press the stem, the silicon oil will go out with propane and go inside to your GBB magazine.