M working on a friends model 107 b and the forend was duct taped on. Upon removing the duct tape I found out why. The locking mechanism that secures the wooden forend to the barrel is either off set or defective. I would say offset due to the way that the small tab extends abnormally far from the rear on the forend. I have the schematics and all the parts are there but I'm just not sure if I'm right or wrong. If anyone owns a Stevens model 107b or if anyone knows what I'm talking about, please respond. I just don't want to fix something and find out it was not the issue. I have pictures if anyone wants to see what I'm talking about. Thank you.