The last few years I have began doing a considerable amount of firearms trading. I habe a short list of handguns, rifles and shotguns in which i know the general value of and can confidently trade without taking a loss. However, ive been hoping to find some sort of "gun value" guide book that might contain approximate values of common makes & models of handguns, rifles and shotguns that might assist me in buying and trading guns that im not that familiar with. Does anyone have anything in mind that mit be helpfull for this? Thanks in advance, the site hasnt let me down yet.