Remington cantilever slug barrel accuracy?

I scored a new 870 remington express (matte finish) 12 ga rifled slug cantilever slug barrel for a great price and I'm debating what to do with it.

I could keep it for the "someday" if I have to hunt slug zones in MN (unlikely), sell it for a good profit, or pick up a rem express to play around and see how accurate a slug gun can be.

Anyone have one of these?
Accurate?
What would you do?

I have a 870 with same barrel. I have found some of the reduced recoil slugs to give really good accuracy from that gun, like one big ragged hole at 75 yards.

Any opinions on what price to sell this used barrel for?

Have a buddy looking for one.
Let me know how much you want for it if you decide to sell
Thanks

Use ebay to estimate prices?

Kenacp, saw your post of 02/05/16 about having a friend looking for a 12ga. rifled and cantilevered scope mount slug barrel to fit a rem. 870. I have a Hastings with 3" chamber, 24"L in excellent condition (used one season, with success, big doe). $155 shipped. Reply if interested.
Thanks, Dave.

Dave,PM sent