I have a Mossberg brand 12ga rifled, open Sight barrel that fits a Rem 870 I'd be willing to part with.

"Life is not a journey to the grave with the intention of arriving safely in a well preserved body, but rather to skid in broadside, used up, worn out, bottle of Jim Beam in one hand and a .45 in the other, loudly proclaiming WOW-- What a Ride!"