Other folks have provided a pretty good picture of that "C" place offering pennies on the dollar. But I thought that you might be interested in a couple of accounts of how that "C" place actually treats both buyers and sellers.
I was visiting my local gun shop one day several months ago when a fellow came in with a bundle in his arms. He was shaking his head and frowning the entire time he walked towards the counter. The store owner said hello and asked him something about the offer he had made for a few weeks earlier. The fellow put the bundle on the counter and unwraped two takedown rifles -- a Winchester 1886 (if I remember correctly) and a Savage 99 -- both taken apart. The fellow explained that he wasn't there to sell them but to see about having them fixed. It turned out that this fellow had stopped by the shop several weeks earlier and inquired about selling these two rifles. The store owner offered him a price, but also offered to put them on consignment in the shop or list them with one of the on-line auction sites. The fellow declined and explained that he would "think about it," meaning he would take them somewhere else. Well, he took them to that "C" place. The people there said they were interested but it would take some time to "evaluate" them, so he needed to leave them. Beyond the risk of leaving them, that meant that he'd have to fill out the 4473 to get them back, but they didn't explain that. He agreed to leave them and after a few days, that "C" place called to say they had finished the "evaluation." He went to store where they told him they really weren't interested because they were both broken! In fact, they were so badly "broken" they couldn't get them back together again. This guy was well over sixy years old and had inherited them from his father. He had shot them many, many years ago and he was pretty sure no one had shot them since then, but he was even more certain that they were just fine when he left them at that "C" place. At least they were each in one piece! To say the guy was a little upset would be an understatement. He said that he had spoken to a lawyer who explained that any legal action would probably cost more than they were worth. In any event, the guy really didn't want to sell them any longer, he just wanted to get them fixed.
This is just one story of the disasters that surround that "C" place. There are countless others. For example, many years ago, before I knew better, I saw a firearm listed on a website that the "C" place uses, so I called and asked about it. Sure, they said, they still had it. I explained that it would be a four hour drive for me and they said they'd be glad to "hold it." So, I made the trip but, of course, when I got there four hours later, the gun couldn't be found. I talked with four or five people and could sense that a couple of them knew more than they were telling me. After another two hours, the guy in charge of the "gun library" admitted he still had the gun, but he wouldn't show it to me because one of the employees had taken it apart and they were too embarrassed to admit they couldn't get it back together. In another case, I stopped by a "C" place that had just opened. It was only my second or third time in one of their stores, so I was excited, but that soon passed when I discovered that several of the firearms in their "gun library" were either missing parts or broken. In another case, a fellow brought a Browning Broadway Trap Set into a local gun shop to see about having it "fixed." He explained that he had bought it at that "C" place but he couldn't get one of the barrels to fit and none of the barrels that he could get on frame would fire. It turned out the barrel that wouldn't fit wasn't even for a Browning and the others wouldn't fire was because the firing pins were broken. That "C" place refused to do anything about the problems. In yet another case, a guy bought a Weatherby Mark XXII from that "C" place, and, you guessed it, it wouldn't fire. It was missing several pieces of the action and the rear sight. It's understandable, because a few years ago I was at a large firearms auction where one guy bought tens of thousands of dollars of firearms. I was curious, so afterwards I managed to ask him about his purchases, especially the ones he overpaid by a factor or 2 or 3 times their value. He immediately began to brag about being with that "C" place and that it really didn't matter what he paid "cause they're all just bait. We put 'em on the rack and the folks just come and buy 'em regardless of the price."
The moral of all of these stories is that if you have an old broken piece of junk that no one else wants, you might be able to sell it to that "C" place. But if it's a decent firearm, you shouldn't have any trouble getting more money from almost anyone for it than you would get from that "C" place. Thanks for sharing and let us know what you decide to do.