Bansner does this occasionally himself. They make two cuts. The first is about 1/2" to 3/4" back from the very tip of the forend. This gives then a "cap" to work with. Then they cut again to shorten it. Finally, they glue the "cap back on over the raw tip, and blend everything in with bondo or something similar. When painted, you can't tell that it was done. (At least when they do it that is)

JimF