How do you adjust the hop up?

How do you adjust the hop up system on a YT385 airsoft gun?

• Answer:

  You can`t. The gun is well done, only problem is the air compression part, that is: 1) plastic, that is a really weak point 2) the metal roll on the spring need more room than the plastic air compression has, so the impact WILL destroy the gun very soon. And by soon i mean like no more that 10 shots. Mine broke after 5 BBs.... So if you can, sell it as long as it works, because later you`ll be sitting on it forever.