King Arms M4 gas tube removal
 

So how do you remove the gas tube? I've taken off the handguards and split the upper receiver from the lower but I have no idea where to start taking out the gas tube.

There should be a small pin holding it into the triangle sight, the you remove the triangle sight and seperate them.

Ok sweet. Thanks for the fast response. Now time to find something to punch it out with.. hahaha