Cobra Firearms BBG9SB: Derringers have more than 100 years of popularity, and they continue to top the charts in sales today for small frame concealed carry firearms. From the cowboy action shooters to the Harley Davidson riders, there's a Derringer to fit your personality! This model from Cobra Firearms is the big-bore model chambered in 9mm. This model features dual barrels and is operated by a single-action only trigger. This model is incredibly slim and fits easily into your pocket for everyday carry. This model also features a beautiful Satin Cerakote finish that also makes it exceptionally resistant to scrapes and corrosion.