You are correct!
The Barrel information I posted was incorrect. I had a brain Fart! My mind set was on thinking of the Remington 870 Special Purpose barrels and not the standard barrels. All of the Standard Barrels of the same gage will fit on the express and you were right on regarding the tube. Thanks!
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves.