Word of mouth sales.

Who do you shoot with? Have you talked to your friends about the firear, you would like to sell? Family members? Selling to people you know makes things much simpler all around.

Find someone on this board who you trust based on their location and their posts. Someone who you believe could help you through your first transaction. Do most of your talking face to face, over the phone, via email, or PM. What you post here in this thread is public information.

If nothing else, talk to one of your local gun shops.

Do you know what your firearm is worth today. Correct pricing is the key to a quick sale.

Be safe.