I have purchased three used side-locks from Williams Gun Sight Company and was not disappointed with any of them. I have found their prices better than GunBroker or any of the other on-line vendors. Every now and then they list a gun at a real bargain. One guy I know picked up a 50 cal Deerhunter from them and even with the shipping it came to around one-hundred bucks. Real nice people to do business with.
Wow, i just went to the williams site. they had a whitetail .504 black syn/SS for $225.00.