Handguns today all too often have DAO or striker fired triggers. Nothing wrong with this, but many pistoleros still like DA/SA handguns. The 4013 and 4013 TSW offer those that carry, a caliber that gets the job done. The 4013 and 4013 TSW offer at 3.5 inch barrel that helps accomplish concealability. And, these two handguns offer a single or staggered stacked magazine giving owners levels of concealability and offer 8 or 9 rounds of inventory. Being an alloyed frame with a steel slide helps with the overall weight. The best offering these two handguns offer and the reason I love them is running the gun when needed; first shot double action, requiring the shooter to be deliberate about the first shot, then thereafter, rapid follow up shots when needed. Both are great guns to bring back.