What would a barely used Marine Mag 18.5 barell be worth?

[pc9]

Well I am looking to fund another gun and I am running out of things to sell
What I do have is a Marine Magnum 18.5 barell and exstention that has only seen a box of slugs and a box of shot.I bought a Dlask 14 inch barell so I have no need for the original.
What would it be worth if I decide to sell?

 

[badboybeeson]

$500 shiped

 

[Pure Energy]

$500 shiped

For a barrel? Damn thats expensive.

 

[pc9]

I Think BBB read it wrong.It is only the Barell that I want to sell and if someone wants to give me 500 bucks for it I wouldnt complain

 

[badboybeeson]

opps
id say $150 to 200
if your take $150 ill buy it from you
bbb