Shorter mag tube

[TXgunowner]

I've got an 870 Tactical, got a tax stamp for a 15" Remington barrel. Would like to shorten the mag tube some or install a shorter one, as it sticks out about 3" beyond the short barrel. Anyone know anybody that will do this work?

[BKinzey]

Check with GunPlumber, Arizona Response Systems.

He should be able to do it or recommend someone.

Vang Comp is another company who might.