Adjustable Pistol-Length Gas Tube?

[pug]

You will have to check with him but mine fits a standard .750" barrel and has the lever on it so you can't put it under a handguard it has to set in front of it. He also makes one that doesn't have a lever you use a small wrench to switch it.

My tube worked out fine but was a little trouble to cut it down. It is the type Fulton sells which I think is Amforte or something like that. It must have handguards with holes in them because the gas valve is too tall to fit under a tube.