Smith & Wesson SD40 2.0, Striker Fired, Semi-automatic, Polymer Frame Pistol, Compact, 40 S&W, 4 Barrel, Satin Finish, Black Frame with Silver Slide, 3-Dot Sights, Adjustable Rear Sight, 10 Rounds, 1 Magazine 13937 Get unmatched value with the new Smith & Wesson SD40 2.0 handgun. A new trigger design offers a more consistent pull that gives shooters a repeatable experience to help aid in their accuracy. More serrations on the slide make for more efficient manipulations during the reload process. Existing SD40 accessories like holsters, lights, and lasers work with the new SD40 2.0.