I regretted buying a S&W Model 60 stainless, new out of the box it came with several defects that included not allowing it to fire. Total POS that two trips back to the factory didn't fix. Regret selling? Many! WWII 98% Luger WWII Hi-Power w/ German markings WWII 1911 by Remington Rand S&W 586 no dash S&W 36 3" 2 Walther W. German PPK/s Early Dan Wesson .357 revolver But the one I regret the most selling was a beautiful High Standard Victor with the box and all factory papers. What the hell was I thinking?