Can't help you on the price, cuz I got mine as part of a 1gun/2barrel package through Gander Mountain, but I can tell to pay whatever a Remington factory barrel costs. Whole thing was just under $500.

I've heard good things about the Hastings barrels for birds and turkeys, but I've seen first hand just how nice the Rem rifled slug barrels shoot. Mine really likes the Rem CoreLokt, and Winchester Supremes at 1,900 fps and 385g. 100 yards = 1 big hole
125 yard doe, nothing but lung (again 1 big hole), with a 2x scope.
Almost too easy. I hope you havesimilar results.