It really is a buyer's market right now, but if you absolutely need to sell you're not going to be completely taken. Prices have stabilized and are definitely lower in the AR/tacticool areas, but if you're thinking about selling some pistols or hunting rifles I think you have a better chance of getting a reasonable amount out of them.
Just as anecdotal evidence, I recently sold 5 guns and only took a loss on one of them (a hunting rifle which I bought new). On my other guns that I sold, I either broke even or gained a little bit (maybe $20 or so). To be fair though, all of the guns I didn't take huge losses on were guns that I bought used for pretty good prices to begin with. If you bought your guns new, do yourself a favor and don't compare the price you get for what you originally paid for them. Depreciation hits guns hard.
If you don't really need to sell right now, I'd say wait a little while for the market to pick back up.