One reason I'm trying to avoid using an online site is that my mom doesn't want to deal with shipping it to the end user/buyer; she would prefer going through an intermediary -- one who could also clean it up and provide an accurate description and condition grading would be useful, too.
To keep things simple, you could just find a good local shop and consign the gun. They will take 15% to 25% of the sale price, but you won't have to do anything other than wait for a buyer. Not nearly as many lookers as at an auction, though.
