How in the world does the darn thing come off? There is one screw in the barrel band. Does the sling stud have to be removed? Also, I'm trying to get the magazine spring and follower out, but the tube doesn't move near as easy as on a 336 with the tube that goes out to the end of the barrel. Any trick for moving the tube out enough so the spring can be removed? I'm thinking if the forearm were to be removed the magazine tube would be easier to move. Thanks, VC