I am going to divest myself of 12 gauges on account of my shoulder. I have a barely used, as new, Beretta 390 black synthetic stock and matte blue 28" barrel. No box, but have original paperwork and spare choke tubes. I have no idea what a fair asking price would be. Seems like bidding starts in the 600's on GB.

I believe one just sold here for less then $600?
you might search the classifieds.

The 20ga guns bring more than the 12ga. I think a fair price would be around $550 for the condition you described. They are very good guns. Shoot soft, very reliable, not too heavy, but there is a saturated market for 3" semi-auto 12ga guns.

Thanks for the replies. I'll probably post it up for $500.

I can't imagine you'll have a hard time selling it at that price. Seems more than fair compared to what I've been seeing online as I've been eyeballing picking up a 12ga SA