Used Gun Values

Is there any place where I can get a ball park value on a piece without having to buy a book or subscribe to a servie or pay a fee on the internet? I don't deal in guns that often, however I do buy/trade/sell sometimes. I have a Universal 30 Caliber Carbin in Good condition and a Kahr P9 in excellent condition that has been "worked" for the loading ramp, etc. If anyone can help me, please email to " This e-mail address is being protected from spam bots, you need JavaScript enabled to view it " Thanks for your help.

I usually run the guns names on google and do search the results with the word value
you can see the price the same piece got recently, but you can always offer it on eBay and see...