The firearm that I regret selling the most was a Sig P220 that I bought back in 93'. Been looking for another for a while now but I was not willing to pay what a new one brings. Went into my favorite gun store ONLY to stock up on reloading components when I made the mistake of looking in the display case. In it was a used P220 that had 50 rounds put through it amd then never fired again. It also had 4 mags instead of the normal 2. All for $650. Needless to say it followed me home. Won't be making the same mistake selling it again!