Mine would have to be the REMINGTON VIPER .22 what a piece of junk. I think it was a 522 model but don't remeber but that was the last Remington i have purchased and that was 19, firearms ago! On the other side of that coin my best firearm would have to be a Hk/USP If it wasn't fur bad luck I thinks i would have nonez Steve j/k lol...