What gun have you purchased that has garnered the most regret. I have two. The Walther P22. This thing had a horrible trigger, ran terribly unreliable, and appeared to be eating itself alive with wear. The second is the Remington R51 gen 2. I bought it out of curiosity. Although it ran fine and was a pleasure to shoot I couldnt get past the negative reviews and has no place for a ccw 9mm that I was unwilling to carry. I was happy to sell both of these guns shortly after purchasing them.