A buddy of mine got a Browning Auto 5 at a DU auction, 12 gauge, all fancy gold-inlaid engraving and such.  He mostly bought it just to support the charity. He won't ever take it out in the field or even to a trap range - says it's too nice.  He hasn't fired a single round through it.  He'd like to sell it to a collector that might get more enjoyment out of owning it than he does.  Where would be the best place for him to sell it?  Online, or IRL?

Thanks.

Is there a Ducks Unlimited board somewhere?
That would be the first obvious place I'd look.

Gunbroker for a larger audience?  Is there a high end  Club nearby, they may have a board or the ROs may know of someone looking for a DU SG.