I would have to say any and all of the not so "Classic" Arms. When they were first introduced (early 1970's), I ordered a Pepperbox from the company. I had to prepay for the thing in full. I waited for approx a year and a half. All the time, the company would send me glowing letters about their products and assure me the wait would be worth it. They claimed that demand for their guns was so high they had trouble keeping up with the demand. I must have received at least four such letters. When the thing finally did arrive, I was absolutely and thoroughly let down to put it mildly. I let customer service, if that is what it was, know just how dissapointed I was. A refund was out of the question because of the time I placed the order and receiving the product according to them. They did continue to send me literature singing the praises of the other pieces they had begun to offer.
A friend of mine had given me a couple of the other types. He was dissapointed in the product also. One was the Ace. It was stamped "made in Korea". The bore was rough and it looked like a broken bit was used. I have seen cleaner looking sewer pipes that have been buried for fifty years or more.
I held onto the Pepperbox, hoping I would at least get my money's worth out of watching the thing rust to oblivion. Finally, those of them that ended up in the recycling bin were given a new lease on life possibly as fenders on a Yugo.
I do own a knife they offered. I got it as a gift. It is called the Coffin Bowie. It wasn't as big of a dissappointment as the pistols. The blade did rust all over with a fine rust. I had used epoxy to fasten the grip scales. I let the thing lay out for a few days in a warm, dry place while the epoxy cured. When I went back to work on the thing I found it was covered with rust. It looked like it had been spray painted. A lot of cleaning and buffing brought it back. Now the knife sits in the safe as a reminder not to purchase Classic Arms products ever again. They turn out pure, unadulterated sub-crap. :cursing: :barf: :barf: