

A sear prevents the striker from hitting the primer unless the trigger is depressed. Instead, its only visible safety is on the bottom half of the trigger, which must be depressed before the striker can be engaged. “The front sight is nice, but having a trigger designed for self-defense makes all the difference in the world to people fighting for their life.” “The self-defense trigger is light enough to be accurate, but not too light,” said Unger. The SDT was designed to provide a smooth, consistent trigger pull every time, which enhances confidence by improving accuracy for the user. While the night sight, checkering and rail are all good for both carry and home-defense guns, according to Unger, the most interesting feature is the Self Defense Trigger. Both versions come with S&W’s lifetime service policy. Just below the steel slide is a textured finger locator to help shooters keep their fingers off the trigger until the pistol is lined up on the target and ready to fire.īoth the SD9 and SD40 have an unloaded weight of 22.7 ounces and come with two high-capacity magazines-the 9 mm version holds 16+1 rounds while the 40 S&W contains 14+1 rounds-or two California-legal 10+1 round mags. Serrations on the slide are deep and slightly angled toward the muzzle providing a good gripping surface for chambering a round. The grips are fairly slim and ergonomic with a good angle-18 degrees-for both point shooting and aimed fire with aggressive diamond-shaped checkering on the front and backstraps and rough texture on the sides.

The SD also comes with a black Melonite finish to reduce glare, which according to S&W provides a surface hardness of 68 on the Rockwell scale. 40 S&W-along with multiple features popular with the self-defense crowd such as a 4-inch barrel, Trijicon front sight, white-dot rear sights, loaded chamber indicator and an accessory rail for attaching a light, laser or even a bayonet.
SMITH AND WESSON OFFICIAL SITE SERIES
Self-defense is the entire theme of the SD Series as it’s available in two effective self-defense calibers-9 mm and.

We wanted a gun that hit in the middle and provided the features needed for self-defense.” “There was a $200 gap between the two and a huge difference in features. “If you look at our polymer pistol line, we had the Sigma, which was a price-point polymer, and we had the full-featured M&P duty gun,” said Jim Unger, S&W product manager. Then, during the 2010 NRA Annual Meetings & Exhibitsin Charlotte, S&W introduced a mid-range polymer pistol to meet the needs of the home and self-defense shooter. Smith & Wesson has been covering both the high and low ends of the polymer-gun price spectrum with its M&P and Sigma lines, respectively. Many law enforcement agencies are issuing some type of striker-fired polymer handgun because the guns are accurate, affordable and, most importantly, easy to use, which also translateswell for the home-defense gun owner.

These “plastic” pistols have become highly popular over the years because of their simplicity and reliability. Since the early 1990s, firearm manufacturers have been producing polymer semi-auto pistols in a variety of calibers for both law enforcement and self-defense markets.
