Bought a G98, I prefer the full musket style to the karbine, got it for a great price, only to realize that the stock had been over sanded down to give it a nicer appearance, didn't have matching bolt, bolt isn't straight like it should be, loose bayonet lug that flopped off after a few rounds because of said wood sanding. Still, it was cheap, but far from the gun I wanted or was presented.
Bought a nice 10 bore Mercury Magnum. Fucker has a dented barrel ( must have been one helluva impact to dent that thick piece of iron) and the impact was enough that its enough out of spec that when you fire both barrels, breaking the action is extremely difficult. Got fucked on that one.
Got a S&W M-22 that was advertised as new old stock. Might have been essentially, but it had a sticker on it that said it was on consignment from some guy, but all the packaging was correct at least. All the screws were loose and the mainspring screw kept backing out causing light primer strikes after thousands of rounds of reloads put through it. Not happy.
Got a Rio 92 44 magnum, mainspring guide was fucking BENT and I had to tear it apart to get it to work right.
After these experiences, I won't buy used guns through them again, only ones I can inspect in person before the purchase. Wanted a new FAL, so I broke down and ordered one from DSA directly, not going through any horseshit on someone who beat up a "new" gun and selling it as "new" and get another experience.