I am new to the forum and pretty new to handguns in general, I am about to purchase a used S&W 686-3. My knowledge of handguns is very limited. I have no idea as to the year, the gun looks to be in great condition, my purchase is contingent on my shooting it, What can anyone tell me, as to age, frame K?-L?-etc, what should a person expect to pay for something this? I know these are hard questions to answer with out having it in your hands, but any general answers (or information) will be appreciated, Thanks Msn